Update readme to ignore markdown generated by bots

Author: kendallgassner

.github/workflows/test-accessibility-alt-text-bot.yml

@@ -15,7 +15,7 @@ jobs:
   accessibility_alt_text_bot:
     name: Check alt text is set on issue or pull requests
     runs-on: ubuntu-latest
-    if: ${{ github.event.issue || github.event.pull_request || github.event.discussion && github.event.comment.user.login != 'accessibility-bot' }}
+    if: ${{ github.event.issue || github.event.pull_request || github.event.discussion && github.event.comment.user.login != 'accessibility-bot' }} && ${{ !endsWith(github.actor, '[bot]') }}
     steps:
       - name: Check alt text
         uses: github/accessibility-alt-text-bot@main

README.md

@@ -50,6 +50,7 @@ permissions:
 jobs:
   accessibility_alt_text_bot:
     name: Check alt text is set on issue or pull requests
+    if: ${{ !endsWith(github.actor, '[bot]') }}
     runs-on: ubuntu-latest
     steps:
       - name: Get action 'github/accessibility-alt-text-bot'