documentation: Two updates

* Copyedit documentation

Close #1378

* remove yum, go full on dnf

fixes #2049

docs/installation/package-manager.md

@@ -24,14 +24,7 @@ icon: material/package
     sudo dnf config-manager --add-repo https://sing-box.app/sing-box.repo
     sudo dnf install sing-box # or sing-box-beta
     ```
-
-=== ":material-redhat: CentOS / YUM"
-
-    ```bash
-    sudo yum install -y yum-utils
-    sudo yum-config-manager --add-repo https://sing-box.app/sing-box.repo
-    sudo yum install sing-box # or sing-box-beta
-    ```
+    (This applies to any distribution that uses `dnf` as the package manager: Fedora, CentOS, even OpenSUSE with DNF installed.)
 
 ## :material-download-box: Manual Installation
 
@@ -46,6 +39,7 @@ icon: material/package
     ```bash
     bash <(curl -fsSL https://sing-box.app/rpm-install.sh)
     ```
+    (This applies to any distribution that uses `rpm` and `systemd`.  Because of how `rpm` defines dependencies, if it installs, it probably works.)
 
 === ":simple-archlinux: Archlinux / PKG"
 

docs/installation/package-manager.zh.md

@@ -24,14 +24,7 @@ icon: material/package
     sudo dnf config-manager --add-repo https://sing-box.app/sing-box.repo
     sudo dnf install sing-box # or sing-box-beta
     ```
-
-=== ":material-redhat: CentOS / YUM"
-
-    ```bash
-    sudo yum install -y yum-utils
-    sudo yum-config-manager --add-repo https://sing-box.app/sing-box.repo
-    sudo yum install sing-box # or sing-box-beta
-    ```
+    （这适用于任何使用 `dnf` 作为包管理器的发行版：Fedora、CentOS，甚至安装了 DNF 的 OpenSUSE。）
 
 ## :material-download-box: 手动安装
 
@@ -46,6 +39,7 @@ icon: material/package
     ```bash
     bash <(curl -fsSL https://sing-box.app/rpm-install.sh)
     ```
+    （这适用于任何使用 `rpm` 和 `systemd` 的发行版。由于 `rpm` 定义依赖关系的方式，如果安装成功，就多半能用。）
 
 === ":simple-archlinux: Archlinux / PKG"
 

docs/manual/proxy-protocol/hysteria2.md

@@ -4,16 +4,17 @@ icon: material/lightning-bolt
 
 # Hysteria 2
 
-The most popular Chinese-made simple protocol based on QUIC, the selling point is Brutal,
-a congestion control algorithm that can resist packet loss by manually specifying the required rate by the user.
+Hysteria 2 is a simple, Chinese-made protocol based on QUIC.
+The selling point is Brutal, a congestion control algorithm that
+tries to achieve a user-defined bandwidth despite packet loss.
 
 !!! warning
 
-    Even though GFW rarely blocks UDP-based proxies, such protocols actually have far more characteristics than TCP based proxies.
+    Even though GFW rarely blocks UDP-based proxies, such protocols actually have far more obvious characteristics than TCP based proxies.
 
-| Specification                                                             | Binary Characteristics | Active Detect Hiddenness |
-|---------------------------------------------------------------------------|------------------------|--------------------------|
-| [hysteria.network](https://v2.hysteria.network/docs/developers/Protocol/) | :material-alert:       | :material-check:         |
+| Specification                                                             | Resists passive detection | Resists active probes |
+|---------------------------------------------------------------------------|---------------------------|-----------------------|
+| [hysteria.network](https://v2.hysteria.network/docs/developers/Protocol/) | :material-alert:          | :material-check:      |
 
 ## :material-text-box-check: Password Generator
 
@@ -44,7 +45,7 @@ To use sing-box with the official program, you need to fill in that combination
     Replace `up_mbps` and `down_mbps` values with the actual bandwidth of your server.
 
 === ":material-harddisk: With local certificate"
-    
+
     ```json
      {
       "inbounds": [

docs/manual/proxy-protocol/shadowsocks.md

@@ -4,15 +4,18 @@ icon: material/send
 
 # Shadowsocks
 
-As the most well-known Chinese-made proxy protocol,
-Shadowsocks exists in multiple versions,
-but only AEAD 2022 ciphers TCP with multiplexing is recommended.
-
-| Ciphers        | Specification                                              | Cryptographic Security | Binary Characteristics | Active Detect Hiddenness |
-|----------------|------------------------------------------------------------|------------------------|------------------------|--------------------------|
-| Stream Ciphers | [shadowsocks.org](https://shadowsocks.org/doc/stream.html) | :material-alert:       | :material-alert:       | :material-alert:         |
-| AEAD           | [shadowsocks.org](https://shadowsocks.org/doc/aead.html)   | :material-check:       | :material-alert:       | :material-alert:         |
-| AEAD 2022      | [shadowsocks.org](https://shadowsocks.org/doc/sip022.html) | :material-check:       | :material-check:       | :material-help:          |
+Shadowsocks is the most well-known Chinese-made proxy protocol.
+It exists in multiple versions, but only AEAD 2022 ciphers 
+over TCP with multiplexing is recommended.
+
+| Ciphers        | Specification                                              | Cryptographically sound | Resists passive detection | Resists active probes |
+|----------------|------------------------------------------------------------|-------------------------|---------------------------|-----------------------|
+| Stream Ciphers | [shadowsocks.org](https://shadowsocks.org/doc/stream.html) | :material-alert:        | :material-alert:          | :material-alert:      |
+| AEAD           | [shadowsocks.org](https://shadowsocks.org/doc/aead.html)   | :material-check:        | :material-alert:          | :material-alert:      |
+| AEAD 2022      | [shadowsocks.org](https://shadowsocks.org/doc/sip022.html) | :material-check:        | :material-check:          | :material-help:       |
+
+(We strongly recommend using multiplexing to send UDP traffic over TCP, because
+doing otherwise is vulnerable to passive detection.)
 
 ## :material-text-box-check: Password Generator
 

docs/manual/proxy-protocol/trojan.md

@@ -4,15 +4,15 @@ icon: material/horse
 
 # Trojan
 
-As the most commonly used TLS proxy made in China, Trojan can be used in various combinations,
+Torjan is the most commonly used TLS proxy made in China. It can be used in various combinations,
 but only the combination of uTLS and multiplexing is recommended.
 
-| Protocol and implementation combination | Specification                                                        | Binary Characteristics | Active Detect Hiddenness |
-|-----------------------------------------|----------------------------------------------------------------------|------------------------|--------------------------|
-| Origin / trojan-gfw                     | [trojan-gfw.github.io](https://trojan-gfw.github.io/trojan/protocol) | :material-check:       | :material-check:         |
-| Basic Go implementation                 | /                                                                    | :material-alert:       | :material-check:         |
-| with privates transport by V2Ray        | No formal definition                                                 | :material-alert:       | :material-alert:         |
-| with uTLS enabled                       | No formal definition                                                 | :material-help:        | :material-check:         |                             
+| Protocol and implementation combination | Specification                                                        | Resists passive detection | Resists active probes |
+|-----------------------------------------|----------------------------------------------------------------------|---------------------------|-----------------------|
+| Origin / trojan-gfw                     | [trojan-gfw.github.io](https://trojan-gfw.github.io/trojan/protocol) | :material-check:          | :material-check:      |
+| Basic Go implementation                 | /                                                                    | :material-alert:          | :material-check:      |
+| with privates transport by V2Ray        | No formal definition                                                 | :material-alert:          | :material-alert:      |
+| with uTLS enabled                       | No formal definition                                                 | :material-help:           | :material-check:      |
 
 ## :material-text-box-check: Password Generator
 
@@ -211,4 +211,3 @@ but only the combination of uTLS and multiplexing is recommended.
       ]
     }
     ```
-