diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index d1297d1..422339a 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v1
+        uses: actions/checkout@v2
 
       - name: Set up Python
         uses: actions/setup-python@v2
@@ -41,12 +41,24 @@ jobs:
     name: Test run action
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - uses: ./
       with:
         path: test/testdata
         only_warn: 1
 
+  codespell:
+    name: Check for spelling errors
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: ./
+      with:
+        check_filenames: true
+        check_hidden: true
+        # When using this Action in other repos, the --skip option below can be removed
+        skip: ./.git,./codespell-problem-matcher/test,./test
+
   diagnose_bats:
     name: Diagnose bats
     runs-on: ubuntu-latest
diff --git a/action.yml b/action.yml
index dad0d7c..6355bc1 100644
--- a/action.yml
+++ b/action.yml
@@ -4,27 +4,27 @@ description: 'Codespell with annotations for Pull Request'
 inputs:
   check_filenames:
     description: 'If set, check file names as well'
-    requred: false
+    required: false
     default: ''
   check_hidden:
     description: 'If set, check hidden files (those starting with ".") as well'
-    requred: false
+    required: false
     default: ''
   exclude_file:
     description: 'File with lines that should not be checked for spelling mistakes'
-    requred: false
+    required: false
     default: ''
   skip:
     description: 'Comma-separated list of files to skip (it accepts globs as well)'
-    requred: false
+    required: false
     default: ''
   path:
     description: 'Path to run codespell in'
-    requred: false
+    required: false
     default: ''
   only_warn:
     description: 'If set, only warn, never error'
-    requred: false
+    required: false
     default: ''
 runs:
   using: 'docker'