chore: update README and semantic-release config

Author: jedwards1211

README.md

@@ -8,16 +8,11 @@
 
 Super powerful structural search and replace for JavaScript and TypeScript to automate your refactoring
 
-# Version 2 Beta
-
-These are docs for the version 2 beta branch.
-
 # Table of Contents
 
 <!-- toc -->
 
 - [astx](#astx)
-- [Version 2 Beta](#version-2-beta)
 - [Table of Contents](#table-of-contents)
 - [Introduction](#introduction)
 - [Usage examples](#usage-examples)

package.json

@@ -60,7 +60,7 @@
   },
   "release": {
     "branches": [
-      "master",
+      "main",
       {
         "name": "beta",
         "prerelease": true