update CONTRIBUTING.md

CONTRIBUTING.md

@@ -1,6 +1,14 @@
 # Contributing to `gopher.nvim`
 
-Thank you for looking to contributing
+Thank you for taking the time to submit some code to gopher.nvim. It means a lot!
+
+### Task running
+
+In this codebase for running tasks is used [Taskfile](https://taskfile.dev).
+You can install it with:
+```bash
+go install github.com/go-task/task/v3/cmd/task@latest
+```
 
 ### Styling and formatting
 
@@ -8,6 +16,40 @@ Code is formatted by [stylua](https://github.com/JohnnyMorganz/StyLua) and linte
 You can install these with:
 
 ```bash
-cargo install stylua
-cargo install selene
+sudo pacman -S selene stylua
+# or whatever is your package manager
+# or way of installing pkgs
+```
+
+For formatting use this following commands, or setup your editor to integrate with selene/stylua:
+```bash
+task format
+task format:check  # will check if your code formatted
+task lint
+```
+
+### Documentation
+
+Here we are using [mini.doc](https://github.com/echasnovski/mini.nvim/blob/main/readmes/mini-doc.md)
+for generating help files based on EmmyLua-like annotations in comments
+
+You can generate docs with:
+```bash
+task docgen
+```
+
+### Commit messages
+We use [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/), please follow it.
+
+### Testing
+
+For testing this plugins uses [plenary.nvim](https://github.com/nvim-lua/plenary.nvim).
+All tests live in [/spec](https://github.com/olexsmir/gopher.nvim/tree/main/spec) dir.
+
+You can run tests with:
+```bash
+task test
+# also there are some aliases for that
+task tests
+task spec
 ```