chore: name commitlint with lowercase

That is how it is used on their GitHub and website as well, so we should use the same style.

Author: jdbruijn

README.md

@@ -1,6 +1,6 @@
-# Commitlint plugin function rules
+# commitlint plugin function rules
 
-Commitlint plugin to define rules as functions.
+commitlint plugin to define rules as functions.
 
 <a name="toc"></a>
 

package.json

@@ -1,7 +1,7 @@
 {
   "name": "commitlint-plugin-function-rules",
   "version": "1.0.7",
-  "description": "Commitlint plugin to define rules as functions.",
+  "description": "commitlint plugin to define rules as functions.",
   "main": "dist/index.js",
   "types": "dist/index.d.js",
   "files": [

src/index.test.ts

@@ -1,8 +1,8 @@
-import * as plugin from './index';
+import * as plugin from './';
 import { describe, expect, it } from '@jest/globals';
 import rules from './rules';
 
-describe('index', () => {
+describe('commitlint plugin function rules', () => {
   it(`exports a CommonJS module with 'rules' object`, () => {
     expect(Object.keys(plugin)).toEqual(['rules']);
     expect(typeof plugin.rules).toEqual('object');