Enable 'typos' in languagetool check

Also, downgrade info level from 'error' to 'info'.

Author: marko-radosavljevic

.github/workflows/language.yaml

@@ -8,8 +8,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: reviewdog/action-languagetool@v1.8.2
+      - uses: reviewdog/action-languagetool@v1
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           reporter: github-pr-check
-          level: error
+          level: info
+          enabled_categories: TYPOS