Add petertriho/cmp-git (#1785)

Signed-off-by: Guennadi Maximov C <[email protected]>

Author: DrKJeff16

README.md

@@ -214,6 +214,7 @@
   - [hrsh7th/cmp-buffer](https://github.com/hrsh7th/cmp-buffer) - `nvim-cmp` source for buffer words.
   - [hrsh7th/cmp-path](https://github.com/hrsh7th/cmp-path) - `nvim-cmp` source for filesystem paths.
   - [hrsh7th/cmp-nvim-lsp](https://github.com/hrsh7th/cmp-nvim-lsp) - `nvim-cmp` source for the Neovim builtin LSP client.
+  - [petertriho/cmp-git](https://github.com/petertriho/cmp-git) - `nvim-cmp` source for `git`.
   - [lukas-reineke/cmp-under-comparator](https://github.com/lukas-reineke/cmp-under-comparator) - A nvim-cmp function for better sorting.
   - [SergioRibera/cmp-dotenv](https://github.com/SergioRibera/cmp-dotenv) - Load environment variables from the shell or from your `.env` files.
 - [nvim-mini/mini.nvim#mini.completion](https://github.com/nvim-mini/mini.nvim/blob/main/readmes/mini-completion.md) - Module of `mini.nvim` for asynchronous two-stage completion. Supports showing completion item info and independent function signature.