fix: Remove obsolete instructions

README.md

@@ -17,39 +17,23 @@
 
   ```bash
   git clone https://github.com/AstroNvim/AstroNvim ~/.config/nvim
-  nvim +PackerSync
   ```
 
 - Clone my config into `~/.config/nvim/lua/user`
-  - For NeoVim >= 8.0
 
   ```bash
   git clone https://github.com/jiriks74/astronvim_config ~/.config/nvim/lua/user
   ```
 
-  - For NeoVim < 8.0 use `neovim7.2` branch
-
-  ```bash
-  git clone -b neovim7.2 https://github.com/jiriks74/astronvim_config ~/.config/nvim/lua/user
-  ```
-
-- Open nvim and run `:PackerSync`
-
-```bash
-nvim +PackerSync
-```
-
 ## Useful info
 
 - Folding with treesitter
   - To get folding for your language, you need to run
   `:TSInstall <language>` (eg. `TSInstall cpp` to get C++ folding)
 - Install language servers
-  - Use `Space+p+I` keybind to open install menu.
+  - Use `Space+p+m` keybind to open install menu.
     - To install package under the cursor, press `i`
     - To uninstall package under the cursor press `X`
-- Debugging
-  - See `vimspector` under [`Extra plugin included`](#extra-plugins-included)
 - LaTeX
   - To use `vimtex` plugin, you need to have LaTeX installed
     - [`texlive-most`](https://wiki.archlinux.org/title/TeX_Live#Installation) package on ArchLinux