update README

Signed-off-by: Joseph Kato <joseph@jdkato.io>

Author: jdkato

README.md

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: errata-ai/vale-action@v2.1.1
+      - uses: vale-cli/vale-action@v2.1.1
 ```
 
 > [!TIP]
@@ -75,7 +75,7 @@ To add an input, edit your workflow file and add the `with` key to the `uses`
 block. For example:
 
 ```yaml
-- uses: errata-ai/vale-action@v2.1.1
+- uses: vale-cli/vale-action@v2.1.1
   with:
     version: 2.17.0
 ```