Update README.md and workflow

Author: edevsh

.github/workflows/php.yml

@@ -48,7 +48,7 @@ jobs:
 
   feature-tests:
     runs-on: ubuntu-latest
-    if: github.ref == 'refs/heads/main'
+    if: github.ref == 'refs/heads/1.x'
     strategy:
       matrix:
         php-version: ['7.4', '8.0', '8.1']

README.md

@@ -4,6 +4,7 @@
 
 # BlueSky SDK for PHP
 
+[![PHP Workflow](https://github.com/shahmal1yev/blueskysdk/actions/workflows/php.yml/badge.svg)](https://github.com/shahmal1yev/blueskysdk/actions/workflows/php.yml)
 ![GitHub tag (latest by date)](https://img.shields.io/github/v/tag/shahmal1yev/blueskysdk?label=latest&style=flat)
 ![GitHub last commit](https://img.shields.io/github/last-commit/shahmal1yev/blueskysdk)
 [![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](LICENSE)