docs: update README.md

README.md

@@ -7,4 +7,73 @@
     alt="Donate (Ko-fi)" />
 </a>
 
-A better and friendly vi mode plugin for ZSH.
+💻 A better and friendly vi(vim) mode plugin for ZSH.
+
+<img alt="Zsh Vi-mode Demo" src="https://user-images.githubusercontent.com/9413601/101981242-61530300-3ca6-11eb-8c7a-c0f4c69562bb.gif" />
+
+## Installation
+
+### Using [Antigen](https://github.com/zsh-users/antigen)
+
+Bundle `zsh-vi-mode` in your `.zshrc`
+
+```shell
+antigen bundle jeffreytse/zsh-vi-mode
+```
+
+### Using [zplug](https://github.com/b4b4r07/zplug)
+Load `zsh-vi-mode` as a plugin in your `.zshrc`
+
+```shell
+zplug "jeffreytse/zsh-vi-mode"
+```
+### Using [zgen](https://github.com/tarjoilija/zgen)
+
+Include the load command in your `.zshrc`
+
+```shell
+zgen load jeffreytse/zsh-vi-mode
+```
+
+### As an [Oh My Zsh!](https://github.com/robbyrussell/oh-my-zsh) custom plugin
+
+Clone `zsh-vi-mode` into your custom plugins repo
+
+```shell
+git clone https://github.com/jeffreytse/zsh-vi-mode \
+  $HOME/.oh-my-zsh/custom/plugins/zsh-vi-mode
+```
+Then load as a plugin in your `.zshrc`
+
+```shell
+plugins+=(zsh-vi-mode)
+```
+
+Keep in mind that plugins need to be added before `oh-my-zsh.sh` is sourced.
+
+### Manually
+Clone this repository somewhere (`$HOME/.zsh-vi-mode` for example)
+
+```shell
+git clone https://github.com/jeffreytse/zsh-vi-mode.git $HOME/.zsh-vi-mode
+```
+Then source it in your `.zshrc` (or `.bashrc`)
+
+```shell
+source $HOME/.zsh-vi/zsh-vi-mode.plugin.zsh
+```
+
+## Credits
+
+- [Zsh](https://www.zsh.org/) - A powerful shell that operates as both an interactive shell and as a scripting language interpreter.
+- [Oh-My-Zsh](https://github.com/ohmyzsh/ohmyzsh) - A delightful, open source, community-driven framework for managing your ZSH configuration.
+
+## Contributing
+
+Issues and Pull Requests are greatly appreciated. If you've never contributed to an open source project before I'm more than happy to walk you through how to create a pull request.
+
+You can start by [opening an issue](https://github.com/jeffreytse/zsh-vi-mode/issues/new) describing the problem that you're looking to resolve and we'll go from there.
+
+## License
+
+This theme is licensed under the [MIT license](https://opensource.org/licenses/mit-license.php) © JeffreyTse.