docs: update cog.toml example and contributing guidelines

CONTRIBUTING.md

@@ -37,6 +37,10 @@ In addition, our CI pipeline uses the following formatter and linter:
 
   Use `cargo clippy` instead of `cargo build` to spot lints before committing your changes.
 
+- **git-hooks**
+  Cocogitto provides sharable git-hooks, if you want to save the hassle of manually running lints and formatters before
+  each commit you can simply run `cog install-hook --all`.
+
 ### Error handling
 * `unwrap()` usage should be avoided, if needed use `expect("why")` instead.
 * For convenience, errors in the [cog](src/bin/cog.rs) CLI and the public API are wrapped with the 

cog.toml

@@ -1,4 +1,7 @@
+# A list of glob patterns describing branches on which semver bump are allowed
 branch_whitelist = ["main"]
+
+# Ignore merge commits from conventional commit checks
 ignore_merge_commits = true
 
 # A list of command to run BEFORE creating a version.
@@ -31,6 +34,8 @@ post_bump_hooks = [
     "echo 'we are done'"
 ]
 
+# Shareable git-hooks, can be isntalled using `cog install-hook --all`
+# or alternatively `cog install-hooks {commit_hook_type}
 [git_hooks.commit-msg]
 script = """#!/bin/sh
 set -e
@@ -59,6 +64,7 @@ template = "remote"
 remote = "github.com"
 repository = "cocogitto"
 owner = "cocogitto"
+
 # Optional contributor list
 # intended to map git signature to remote username
 # and generate changelog links to their remote profiles