docs: update README.md

Author: fcwu

README.md

@@ -1,25 +1,41 @@
-docker-ubuntu-vnc-desktop
-=========================
+# docker-ubuntu-vnc-desktop
 
 [![Docker Pulls](https://img.shields.io/docker/pulls/dorowu/ubuntu-desktop-lxde-vnc.svg)](https://hub.docker.com/r/dorowu/ubuntu-desktop-lxde-vnc/)
 [![Docker Stars](https://img.shields.io/docker/stars/dorowu/ubuntu-desktop-lxde-vnc.svg)](https://hub.docker.com/r/dorowu/ubuntu-desktop-lxde-vnc/)
 
-Docker image to provide HTML5 VNC interface to access a Ubuntu 18.04 LXDE desktop environment.
+docker-ubuntu-vnc-desktop is a Docker image to provide web VNC interface to access Ubuntu LXDE/LxQT desktop environment.
 
-Quick Start
--------------------------
+<!-- @import "[TOC]" {cmd="toc" depthFrom=2 depthTo=2 orderedList=false} -->
+
+<!-- code_chunk_output -->
+
+- [Quick Start](#quick-start)
+- [VNC Viewer](#vnc-viewer)
+- [HTTP Base Authentication](#http-base-authentication)
+- [SSL](#ssl)
+- [Screen Resolution](#screen-resolution)
+- [Default Desktop User](#default-desktop-user)
+- [Deploy to a subdirectory (relative url root)](#deploy-to-a-subdirectory-relative-url-root)
+- [Sound (Preview version and Linux only)](#sound-preview-version-and-linux-only)
+- [Generate Dockerfile from jinja template](#generate-dockerfile-from-jinja-template)
+- [Troubleshooting and FAQ](#troubleshooting-and-faq)
+- [License](#license)
+
+<!-- /code_chunk_output -->
+
+## Quick Start
 
 Run the docker container and access with port `6080`
 
-```
+```shell
 docker run -p 6080:80 -v /dev/shm:/dev/shm dorowu/ubuntu-desktop-lxde-vnc
 ```
 
 Browse http://127.0.0.1:6080/
 
 <img src="https://raw.github.com/fcwu/docker-ubuntu-vnc-desktop/master/screenshots/lxde.png?v1" width=700/>
 
-**Ubuntu Version**
+### Ubuntu Flavors
 
 Choose your favorite Ubuntu version with [tags](https://hub.docker.com/r/dorowu/ubuntu-desktop-lxde-vnc/tags/)
 
@@ -30,91 +46,84 @@ Choose your favorite Ubuntu version with [tags](https://hub.docker.com/r/dorowu/
 - xenial: Ubuntu 16.04 (deprecated)
 - trusty: Ubuntu 14.04 (deprecated)
 
-VNC Viewer
-------------------
+## VNC Viewer
 
 Forward VNC service port 5900 to host by
 
-```
+```shell
 docker run -p 6080:80 -p 5900:5900 -v /dev/shm:/dev/shm dorowu/ubuntu-desktop-lxde-vnc
 ```
 
 Now, open the vnc viewer and connect to port 5900. If you would like to protect vnc service by password, set environment variable `VNC_PASSWORD`, for example
 
-```
+```shell
 docker run -p 6080:80 -p 5900:5900 -e VNC_PASSWORD=mypassword -v /dev/shm:/dev/shm dorowu/ubuntu-desktop-lxde-vnc
 ```
 
 A prompt will ask password either in the browser or vnc viewer.
 
-HTTP Base Authentication
----------------------------
+## HTTP Base Authentication
 
 This image provides base access authentication of HTTP via `HTTP_PASSWORD`
 
-```
+```shell
 docker run -p 6080:80 -e HTTP_PASSWORD=mypassword -v /dev/shm:/dev/shm dorowu/ubuntu-desktop-lxde-vnc
 ```
 
-SSL
---------------------
+## SSL
 
 To connect with SSL, generate self signed SSL certificate first if you don't have it
 
-```
+```shell
 mkdir -p ssl
 openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout ssl/nginx.key -out ssl/nginx.crt
 ```
 
 Specify SSL port by `SSL_PORT`, certificate path to `/etc/nginx/ssl`, and forward it to 6081
 
-```
+```shell
 docker run -p 6081:443 -e SSL_PORT=443 -v ${PWD}/ssl:/etc/nginx/ssl -v /dev/shm:/dev/shm dorowu/ubuntu-desktop-lxde-vnc
 ```
 
-Screen Resolution
-------------------
+## Screen Resolution
 
 The Resolution of virtual desktop adapts browser window size when first connecting the server. You may choose a fixed resolution by passing `RESOLUTION` environment variable, for example
 
-```
+```shell
 docker run -p 6080:80 -e RESOLUTION=1920x1080 -v /dev/shm:/dev/shm dorowu/ubuntu-desktop-lxde-vnc
 ```
 
-Default Desktop User
---------------------
+## Default Desktop User
 
 The default user is `root`. You may change the user and password respectively by `USER` and `PASSWORD` environment variable, for example,
 
-```
+```shell
 docker run -p 6080:80 -e USER=doro -e PASSWORD=password -v /dev/shm:/dev/shm dorowu/ubuntu-desktop-lxde-vnc
 ```
 
-Deploy to a subdirectory (relative url root)
---------------------------------------------
+## Deploy to a subdirectory (relative url root)
 
 You may deploy this application to a subdirectory, for example `/some-prefix/`. You then can access application by `http://127.0.0.1:6080/some-prefix/`. This can be specified using the `RELATIVE_URL_ROOT` configuration option like this
 
-```
+```shell
 docker run -p 6080:80 -e RELATIVE_URL_ROOT=some-prefix dorowu/ubuntu-desktop-lxde-vnc
 ```
 
 NOTE: this variable should not have any leading and trailing splash (/)
 
-Sound (Preview version and Linux only)
---------------------------------------
+## Sound (Preview version and Linux only)
 
 It only works in Linux. 
 
 First of all, insert kernel module `snd-aloop` and specify `2` as the index of sound loop device
 
-```
+```shell
 sudo modprobe snd-aloop index=2
 ```
 
 Start the container
 
-```
+```shell
 docker run -it --rm -p 6080:80 --device /dev/snd -e ALSADEV=hw:2,0 dorowu/ubuntu-desktop-lxde-vnc
 ```
 
@@ -127,8 +136,9 @@ Following is the screen capture of these operations. Turn on your sound at the e
 [![demo video](http://img.youtube.com/vi/Kv9FGClP1-k/0.jpg)](http://www.youtube.com/watch?v=Kv9FGClP1-k)
 
 
-Generate Dockerfile from jinja template
--------------------
+## Generate Dockerfile from jinja template
+
+WARNING: Deprecated
 
 Dockerfile and configuration can be generated by template. 
 
@@ -140,17 +150,15 @@ Dockerfile and configuration can be generated by template.
 
 Dockerfile and configuration are re-generate if they do not exist. Or you may force to re-generate by removing them with the command `make clean`.
 
-Troubleshooting and FAQ
-==================
+## Troubleshooting and FAQ
 
 1. boot2docker connection issue, https://github.com/fcwu/docker-ubuntu-vnc-desktop/issues/2
 2. Multi-language supports, https://github.com/fcwu/docker-ubuntu-vnc-desktop/issues/80
-3. Autostart, https://github.com/fcwu/docker-ubuntu-vnc-desktop/issues/85
+3. Autostart, https://github.com/fcwu/docker-ubuntu-vnc-desktop/issues/85#issuecomment-466778407
 4. x11vnc arguments(multiptr), https://github.com/fcwu/docker-ubuntu-vnc-desktop/issues/101
 5. firefox/chrome crash (/dev/shm), https://github.com/fcwu/docker-ubuntu-vnc-desktop/issues/112
 6. resize display size without destroying container, https://github.com/fcwu/docker-ubuntu-vnc-desktop/issues/115#issuecomment-522426037
 
-License
-==================
+## License
 
 See the LICENSE file for details.