Change according to suggestions from markdownfmt

clefos/content.md

@@ -1,16 +1,20 @@
-# ClefOS
+ClefOS
+======
 
 ClefOS Linux is a community-supported distribution for IBM Z (aka "mainframe") derived from sources freely provided to the public by [CentOS](http://vault.clefos.org/) which in turn is derived from the [Red Hat](ftp://ftp.redhat.com/pub/redhat/linux/enterprise/) sources for Red Hat Enterprise Linux (RHEL). As such, ClefOS Linux aims to be functionally compatible with CentOS and RHEL. The ClefOS Project mainly changes packages to remove upstream vendor branding and artwork. ClefOS Linux is no-cost and free to redistribute. Each ClefOS Linux version is maintained and released according to the CentOS schedule.
 
 %%LOGO%%
 
-# ClefOS image documentation
+ClefOS image documentation
+==========================
 
 The `clefos:latest` tag is always the most recent version currently available.
 
-## Building the Base Image
+Building the Base Image
+-----------------------
 
 The image is built via the make command against the following Makefile:
+
 ```
 VERSION=$(shell cat VERSION)
 
@@ -36,32 +40,40 @@ clean:
         docker rmi clefos/clefos:clefos7 || true
         docker rmi clefos/clefos:$(VERSION) || true
 ```
-The createBase.sh script is used to create the tarball for the docker build command. The script uses the yum command with the `tsflags=nodocs` option set to reduce the size of the image. In addition a lot of the locale files are eliminated from the image. 
 
-The VERSION file contains the id of the current ClefOS version and will be added as a label within the image.
-## Rolling builds
+The `createBase.sh` script is used to create the tarball for the docker build command. The script uses the yum command with the `tsflags=nodocs` option set to reduce the size of the image. In addition a lot of the locale files are eliminated from the image.
+
+The `VERSION` file contains the id of the current ClefOS version and will be added as a label within the image.
+
+Rolling builds
+--------------
 
 The ClefOS Project offers regularly updated images for all active releases. These images will be updated monthly or as needed for emergency fixes. These rolling updates are tagged with the major version number only. For example: `docker pull clefos:7`
 
-## Minor tags
+Minor tags
+----------
 
 Additionally, images with minor version tags that correspond to install media are also offered. **These images DO NOT recieve updates** as they are intended to match installation iso contents. If you choose to use these images it is highly recommended that you include `RUN yum -y update && yum clean all` in your Dockerfile, or otherwise address any potential security concerns. To use these images, please specify the minor version tag:
 
 For example: `docker pull clefos:7.3.1611`
 
-## Overlayfs and yum
+Overlayfs and yum
+-----------------
 
 Recent Docker versions support the [overlayfs](https://docs.docker.com/engine/userguide/storagedriver/overlayfs-driver/) backend, which is enabled by default on most distros supporting it from Docker 1.13 onwards. On ClefOS 7, **that backend requires yum-plugin-ovl to be installed and enabled**; while it is installed by default in recent clefos images, make it sure you retain the `plugins=1` option in `/etc/yum.conf` if you update that file; otherwise, you may encounter errors related to rpmdb checksum failure - see [Docker ticket 10180](https://github.com/docker/docker/issues/10180) for more details.
 
-# Package documentation
+Package documentation
+=====================
 
 By default, the ClefOS containers are built using yum's `nodocs` option, which helps reduce the size of the image. If you install a package and discover files missing, please comment out the line `tsflags=nodocs` in `/etc/yum.conf` and reinstall your package.
 
-# Systemd integration
+Systemd integration
+===================
 
 Systemd is now included in both the clefos:7 and clefos:latest base containers, but it is not active by default. In order to use systemd, you will need to include text similar to the example Dockerfile below:
 
-## Dockerfile for systemd base image
+Dockerfile for systemd base image
+---------------------------------
 
 ```dockerfile
 FROM 		clefos:clefos7
@@ -93,7 +105,8 @@ This Dockerfile deletes a number of unit files which might cause issues. From he
 $ docker build --rm -t local/c7-systemd .
 ```
 
-## Example systemd enabled app container
+Example systemd enabled app container
+-------------------------------------
 
 In order to use the systemd enabled base container created above, you will need to create your `Dockerfile` similar to the one below.
 
@@ -110,7 +123,8 @@ Build this image:
 $ docker build --rm -t local/c7-systemd-httpd .
 ```
 
-## Running a systemd enabled app container
+Running a systemd enabled app container
+---------------------------------------
 
 In order to run a container with systemd, you will need to mount the cgroups volumes from the host. Below is an example command that will run the systemd enabled httpd container created earlier.