fix release trigger body

Author: hathach

.github/workflows/trigger.yml

@@ -55,6 +55,5 @@ jobs:
         git push origin ${{ github.event.release.tag_name }}
         
         # Send POST reqwuest to release https://docs.github.com/en/rest/reference/repos#create-a-release
-        bb={{ github.event.release.body }}
-        bb=${bb//\n/\\\n}
+        bb="For release note, please checkout https://github.com/hathach/tinyusb/releases/tag/${{ github.event.release.tag_name }}"
         curl -X POST -H "Authorization: token ${{ secrets.API_TOKEN_GITHUB }}" -H "Accept: application/vnd.github.v3+json" --data '{"tag_name": "${{ github.event.release.tag_name }}", "name": "${{ github.event.release.name }}", "body": "$bb", "draft": ${{ github.event.release.draft }}, "prerelease": ${{ github.event.release.prerelease }}}' https://api.github.com/repos/hathach/tinyusb_src/releases