small doc update

Author: marian-code

README.md

@@ -31,15 +31,15 @@ Basic:
 ```yml
 steps:
   - uses: actions/checkout@v1
-  - uses: marian-code/python-lint-annotate@v2
+  - uses: marian-code/python-lint-annotate@v3
 ```
 
 Options:
 
 ```yml
 steps:
   - uses: actions/checkout@v1
-  - uses: marian-code/python-lint-annotate@v2
+  - uses: marian-code/python-lint-annotate@v3
     with:
       python-root-list: "src/ tests/*"  # accepts wildcards
       use-pycodestyle: false