Change pull request name for autoprefixer workflow (#130)

.github/workflows/autoprefixer.yml

@@ -26,9 +26,9 @@ jobs:
           branch: autoprefixer
           branch-suffix: timestamp
           commit-message: add vendor specific css prefixes
-          title: "Add vendor specific CSS prefixes"
+          title: "Update and run autoprefixer"
           body: |
-            This PR adds vendor specific CSS prefixes using [postcss/autoprefixer](https://github.com/postcss/autoprefixer).
+            This PR runs [postcss/autoprefixer](https://github.com/postcss/autoprefixer) to update vendor specific CSS prefixes.
 
             >This PR has been created automatically by Github Action [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request).
           labels: enhancement