Update main.yml

Author: ganeshhubale

.github/workflows/main.yml

@@ -1,13 +1,18 @@
-name: readit
+name: Pre-Commit and Cross-Platform Test Suite
 
 on:
-  push:
-  pull_request:
-    types: ["opened", "synchronize", "reopened"]
+  pull_request: 
+    branches:
+      - master
+    types:
+      - opened
+      - synchronize
+      - reopened
   schedule:
     # Run every Friday at 23:59 UTC
-    - cron: 59 23 * * 5
-
+    - cron: '59 23 * * 5'
+  workflow_dispatch:
+  
 jobs:
   pre-commit:
     name: Pre-Commit Checks
@@ -22,7 +27,7 @@ jobs:
           python-version: '3.8'
           architecture: 'x64'
 
-      - name: Pre-Commit Checks
+      - name: Pre-Commit
         run: |
             python -m pip install pre-commit
             pre-commit run -a
@@ -38,7 +43,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: [ '3.6', '3.7', '3.8' ]
+        python-version: [ '3.8', '3.9']
     steps:
       - name: Checkout
         uses: actions/checkout@v2