docs: update vim documentation (TabbyML#453)

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* fix: apply suggestions from code review

Co-authored-by: Meng Zhang <[email protected]>

---------

Co-authored-by: Meng Zhang <[email protected]>

clients/vim/README.md

@@ -1,13 +1,28 @@
 # Tabby VIM extension
 
+Tabby is compatible with both Vim and NeoVim text editor via a plugin.
+
 ## Requirements
 
+Before installing the plugin you will need to have installed:
+
 1. VIM 9.0+ with `+job` and `+textprop` features enabled, or NeoVIM 0.6.0+.
 2. Node.js 16.0+.
 
 ## Getting started
 
+You can either install TabbyML vim extension using [Vim-Plug](https://github.com/junegunn/vim-plug), [Packer](https://github.com/wbthomason/packer.nvim) or [Lazy](https://github.com/folke/lazy.nvim).
+
 ### 🔌 Vim-Plug
+
+[Vim-Plug](https://github.com/junegunn/vim-plug) is a minimalist Vim plugin manager that you can use to install TabbyML plugin.
+You can install Vim-Plug by following these [intructions](https://github.com/junegunn/vim-plug#installation).
+
+
+
+You will need to edit your vim config file (`~/.vimrc` for vim and `~/.config/nvim/init.vim` for neovim) and copy paste the following lines in it (between the `plug#begin` and `plug#end` lines)
+
+
 ```
 " Make sure that the filetype plugin has been enabled.
 filetype plugin on
@@ -18,12 +33,27 @@ Plug 'TabbyML/tabby', {'rtp': 'clients/vim'}
 " Set URL of Tabby server
 let g:tabby_server_url = 'http://127.0.0.1:8080'
 ```
+
+Note that you can change the tabby server url here.
+
+
+You then need to actually install the plugin, to do so you need to type in your vim command.
+
+```
+:PlugInstall
+```
+You should see the tabbyML plugin beeing installed.
+
+
 ### 📦 Packer and Lazy
+You first need to install either [Packer](https://github.com/wbthomason/packer.nvim) or [Lazy](https://github.com/folke/lazy.nvim).
+
 In this case, you first need to clone the repo in your machine
 ```
 git clone https://github.com/TabbyML/tabby.git ~/tabby
 ```
-Then on the config file:
+You will need to edit `~/.config/nvim/init.vim` for and copy paste the following lines in it.
+
 ```
 " For lazy
 return { name = "tabby", dir = '~/tabby/clients/vim', enabled = true }
@@ -41,6 +71,21 @@ let g:tabby_server_url = 'http://127.0.0.1:8080'
 ```
 > In the future, the ideal would be to export the Vim extension to a separate Git repository. This would simplify the installation process [#252](https://github.com/TabbyML/tabby/issues/252).
 
+## Checking the installation
+
+Once the plugin is installed you can check if the install was done sucessfully by doing in your vim command
+
+```
+:Tabby status
+```
+
+You should see
+```
+Tabby is online
+```
+
+If you se `Tabby cannot connect to the server` it means that you need to start the tabby server first. Refer to this [documentation](https://tabby.tabbyml.com/docs/installation/)
+
 ## Usage
 
 1. In insert mode, Tabby will show code suggestion when you stop typing. Press `<Tab>` to accpet the current suggestion, `<M-]>` to see the next suggestion, `<M-[>` to see previous suggestion, or `<C-]>` to dismiss.