refine README

README.md

@@ -67,13 +67,13 @@ brew cask install vnote
 ```
 
 # Description
-**VNote** is a Qt-based, free and open source note-taking application, focusing on Markdown. VNote is designed to provide comfortable edit experience.
+**VNote** is a Qt-based, free and open source note-taking application, focusing on Markdown. VNote is designed to provide comfortable edit experience, especially for programmers.
 
 VNote is **NOT** just a simple editor for Markdown. By providing notes management, VNote makes taking notes in Markdown simpler and more pleasant.
 
 Utilizing Qt, VNote could run on **Linux**, **Windows**, and **macOS**.
 
-![VNote Main Interface](screenshots/_vnotemaini_1521763751_1643978501.png)
+![VNote Main Interface](screenshots/_vnotemaini_1525154456_1561295841.png)
 
 # Supports
 - [Github issues](https://github.com/tamlok/vnote/issues);
@@ -86,16 +86,18 @@ Utilizing Qt, VNote could run on **Linux**, **Windows**, and **macOS**.
 - **Universal Entry** to reach anything just by typing;
 - Inserting images directly from clipboard;
 - Syntax highlights of fenced code blocks in both **edit** and **read** mode;
+- Powerful **In-Place Preview** for images, diagrams, and formulas;
+- Side-by-side live preview for diagrams;
 - Outline in both edit and read mode;
 - Custom styles in both edit and read mode;
 - Vim mode and a set of powerful shortcuts;
 - Infinite levels of folders;
 - Multiple tabs and splitting windows;
-- [Mermaid](http://knsv.github.io/mermaid/), [Flowchart.js](http://flowchart.js.org/), and [MathJax](https://www.mathjax.org/);
+- [Mermaid](http://knsv.github.io/mermaid/), [Flowchart.js](http://flowchart.js.org/), [MathJax](https://www.mathjax.org/), [PlantUML](http://plantuml.com/), and [Graphviz](http://www.graphviz.org/);
 - Supports HiDPI;
 - Attachments of notes;
 - Themes and dark mode;
-- Rich and extensible export, such as HTML, PDF, and PDF (All In One);
+- Rich and extensible export, such as HTML, PDF, PDF (All In One), and images;
 
 # Donate
 You could help VNote's development in many ways.
@@ -149,10 +151,10 @@ VNote also supports **syntax highlight for fenced code blocks** in edit mode in
 
 ![Syntax Highlight](screenshots/_1513485266_1616037517.png)
 
-## Live Image Preview
-VNote supports previewing the image link in edit mode. With this, you could just stay in edit mode as much as possible.
+## In-Place Preview
+VNote supports powerful **in-place preview** for images, diagrams, and formulas in edit mode.
 
-![Live Image Preview](screenshots/_1513485934_140085443.png)
+![In-Place Preview](screenshots/_inplacepre_1525155248_405615820.png)
 
 ## Pleasant Image Experience
 Just paste your image into the Markdown note, VNote will manage all other stuffs. VNote stores images in a specified folder in the same folder with the note. VNote will pop up a window to preview the image when you insert an image. Furthermore, VNote will delete the useless image files automatically after you remove the image links.

README_zh.md

@@ -74,7 +74,7 @@ VNote不是一个简单的Markdown编辑器。通过提供笔记管理功能，V
 
 基于Qt框架，VNote能够在主流操作系统上运行，包括 **Linux**, **Windows** 以及 **macOS** 。
 
-![VNote Main Interface](screenshots/_vnotemaini_1521763751_1643978501.png)
+![VNote Main Interface](screenshots/_vnotemaini_1525154456_1561295841.png)
 
 # 支持
 - [Github issues](https://github.com/tamlok/vnote/issues)；
@@ -87,16 +87,18 @@ VNote不是一个简单的Markdown编辑器。通过提供笔记管理功能，V
 - **通用入口**，通过按键操控一切；
 - 直接从剪切板插入图片；
 - 编辑和阅读模式下代码块的语法高亮；
+- 强大的**原地预览**，包括图片、图表和公式；
+- 针对图表的两边实时预览；
 - 编辑和阅读模式下的大纲；
 - 自定义编辑和阅读模式的样式；
 - Vim模式以及一系列强大的快捷键；
 - 无限层级的文件夹；
 - 多个标签页和窗口分割；
-- [Mermaid](http://knsv.github.io/mermaid/), [Flowchart.js](http://flowchart.js.org/) 和 [MathJax](https://www.mathjax.org/)；
+- [Mermaid](http://knsv.github.io/mermaid/)、 [Flowchart.js](http://flowchart.js.org/)、 [MathJax](https://www.mathjax.org/)、 [PlantUML](http://plantuml.com/) 和 [Graphviz](http://www.graphviz.org/)；
 - 支持高分辨率；
 - 笔记附件；
 - 主题以及深色模式；
-- 丰富、可扩展的导出，包括HTML，PDF，和PDF（多合一）；
+- 丰富、可扩展的导出，包括HTML、PDF、PDF（多合一）和图片；
 
 # 捐赠
 您可以通过很多途径帮助VNote的开发。
@@ -150,12 +152,10 @@ VNote还支持Markdown编辑模式中代码块的语法高亮。目前的Markdow
 
 ![Syntax Highlight](screenshots/_1513485266_1616037517.png)
 
-## 实时图片预览
-VNote支持在编辑时原地预览图片链接。这样一来，您就能尽可能地留在编辑模式，避免频繁切换。
+## 原地预览
+VNote支持在编辑时原地预览图片、图表和公式。
 
-如果想要拷贝图片，可以选取该图片，然后复制。
-
-![Live Image Preview](screenshots/_1513485934_140085443.png)
+![In-Place Preview](screenshots/_inplacepre_1525155248_405615820.png)
 
 ## 良好的图片体验
 编辑时，支持像其他富文本编辑器一样直接粘贴插入图片，VNote会帮您管理所插入的图片。VNote将这些图片保存在和笔记同一目录下的一个指定目录中。插入图片时，VNote会弹出一个窗口预览即将要插入的图片。另外，当您移除笔记中的图片链接时，VNote会自动删除对应的图片文件。