Update README

Author: deathaxe

README.md

@@ -6,8 +6,52 @@ For working with [Jekyll](https://jekyllrb.com), this package also provides prop
 
 ![](preview.png)
 
+## Installation
+
+### Package Control
+
+The easiest way to install is using [Package Control](https://packagecontrol.io). It's listed as `Liquid`.
+
+1. Open `Command Palette` using <kbd>ctrl+shift+P</kbd> or menu item `Tools → Command Palette...`
+2. Choose `Package Control: Install Package`
+3. Find `Liquid` and hit <kbd>Enter</kbd>
+
+### Manual Install
+
+1. Download appropriate [Liquid-2.0.0-st4xxx.sublime-package](https://github.com/SublimeText/Liquid/releases) for your Sublime Text build.  
+   _The `st4xxx` suffix denotes the least required ST build for the sublime-package to work._
+2. Rename it to _Liquid.sublime-package_
+3. Copy it into _Installed Packages_ directory
+
+> To find _Installed Packages_...
+>
+> 1. call _Menu > Preferences > Browse Packages.._
+> 2. Navigate to parent folder
+
 ## Usage
 
 To enable the syntax, select `Liquid > HTML (Liquid)` or `Liquid > Markdown (Liquid)` from syntax selection menu or via Command Palette.
 
 To always open your templates with this syntax, use the `Open all with current extension as ...` option, and select the proper Liquid syntax.
+
+## Troubleshooting
+
+Liquid extends Sublime Text's HTML, Markdown, CSS and JavaScript, syntax definitions.
+
+If Liquid syntax highlighting doesn't work and console displays syntax errors, 
+
+1. check if required bundled packages are enabled.
+2. remove any out-dated syntax override.
+   
+### Enable bundled packages
+
+1. Open `Command Palette` using <kbd>ctrl+shift+P</kbd> or menu item `Tools → Command Palette...`
+2. Choose `Package Control: Enable Packages`
+3. Find `CSS` and hit <kbd>Enter</kbd>
+4. Repeat the steps for `JavaScript`, `HTML` and `Markdown`
+
+### Remove overrides
+
+1. call _Menu > Preferences > Browse Packages.._
+2. Look for _CSS_, _HTML_, _JavaScript_, _Markdown_ folder
+3. Remove them or at least delete any syntax definition in them