diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 697e178..06d8410 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -59,20 +59,33 @@ jobs:
         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
+        skip: ./.git,./codespell-problem-matcher/test,./test,./README.md,./.github/workflows/testing.yml
+    # Check our README (and this workflow) ignoring the two intentional typos
+    - uses: ./
+      with:
+        check_filenames: true
+        check_hidden: true
+        path: ./README.md,./.github/workflows/testing.yml
+        ignore_words_list: abandonned,ackward
 
   diagnose_bats:
     name: Diagnose bats
+    needs: test
+    if: always() && needs.test.result == 'failure'
     runs-on: ubuntu-latest
     continue-on-error: true
+    strategy:
+      fail-fast: false
+      matrix:
+        codespell_pip_version: ['codespell']
+        include:
+          - codespell_pip_version: 'git+https://github.com/codespell-project/codespell.git'
     steps:
       - uses: actions/checkout@v1
       - name: Set up Python
         uses: actions/setup-python@v2
-      - run: pip3 --quiet --quiet install git+https://github.com/codespell-project/codespell.git
+      - run: pip3 --quiet --quiet install ${{ matrix.codespell_pip_version }}
       - run: |
-          # Skip the bats diagnostics
-          exit 0
           # Simulate the Dockerfile COPY command
           [ -d "${RUNNER_TEMP}/code/" ] || sudo mkdir -p ${RUNNER_TEMP}/code/
           [ -f "${RUNNER_TEMP}/code/codespell-matcher.json" ] || sudo cp codespell-problem-matcher/codespell-matcher.json ${RUNNER_TEMP}/code/
diff --git a/README.md b/README.md
index 86ec47a..898039b 100644
--- a/README.md
+++ b/README.md
@@ -57,6 +57,44 @@ with:
   skip: foo,bar
 ```
 
+### Parameter: builtin
+
+Comma-separated list of builtin dictionaries to use.
+
+This parameter is optional; by default `codespell` will use it's default selection of built in dictionaries.
+
+```
+uses: codespell-project/actions-codespell@master
+with:
+  builtin: clear,rare
+```
+
+### Parameter: ignore_words_file
+
+File that contains words which will be ignored by `codespell`. File must contain one word per line.
+Words are case sensitive based on how they are written in the dictionary file.
+
+This parameter is optional; by default `codespell` will check all words for typos.
+
+```
+uses: codespell-project/actions-codespell@master
+with:
+  ignore_words_file: .codespellignore
+```
+
+### Parameter: ignore_words_list
+
+Comma-separated list of words which will be ignored by `codespell`.
+Words are case sensitive based on how they are written in the dictionary file.
+
+This parameter is optional; by default `codespell` will check all words for typos.
+
+```
+uses: codespell-project/actions-codespell@master
+with:
+  ignore_words_list: abandonned,ackward
+```
+
 ### Parameter: path
 
 Indicates the path to run `codespell` in.
diff --git a/action.yml b/action.yml
index 3e915f2..f8c31ed 100644
--- a/action.yml
+++ b/action.yml
@@ -23,11 +23,11 @@ inputs:
     required: false
     default: ''
   ignore_words_file:
-    description: 'File with a list of words to be ignored'
+    description: 'File with a list of words to be ignored. Words are case sensitive based on how they are written in the dictionary file'
     required: false
     default: ''
   ignore_words_list:
-    description: 'Comma-separated list of words to be ignored'
+    description: 'Comma-separated list of words to be ignored. Words are case sensitive based on how they are written in the dictionary file'
     required: false
     default: ''
   path: