diff --git a/.github/workflows/linux-nightly.yml b/.github/workflows/linux-nightly.yml
index 50800556e..c16a397cb 100644
--- a/.github/workflows/linux-nightly.yml
+++ b/.github/workflows/linux-nightly.yml
@@ -14,6 +14,7 @@
 # https://help.github.com/en/actions/configuring-and-managing-workflows/caching-and-storing-workflow-data
 # https://help.github.com/en/actions/configuring-and-managing-workflows/caching-dependencies-to-speed-up-workflows
 # https://help.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners#supported-runners-and-hardware-resources
+# https://help.github.com/en/actions/reference/workflow-syntax-for-github-actions#filter-pattern-cheat-sheet
 # https://sevenzip.osdn.jp/chm/cmdline/commands/index.htm
 
 name: linux nightly/pr CI
@@ -213,3 +214,4 @@ jobs:
 # https://github.com/mxschmitt/action-tmate
 #     - name: Setup tmate session
 #      uses: mxschmitt/action-tmate@v1
+
diff --git a/.github/workflows/mac-nightly.yml b/.github/workflows/mac-nightly.yml
index 00c293837..9653e0c8d 100644
--- a/.github/workflows/mac-nightly.yml
+++ b/.github/workflows/mac-nightly.yml
@@ -130,3 +130,4 @@ jobs:
       run: |
         COLUMNS=80 stack exec -- shelltest --execdir -j16 tests -x /bin -x /addons
 
+
diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index 848374060..fa9419029 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -120,3 +120,4 @@ jobs:
     - name: Test functional tests (excluding addons)
       run: |
         COLUMNS=80 stack exec -- shelltest --execdir -j16 tests -x /bin -x /addons
+
diff --git a/.github/workflows/windows-nightly.yml b/.github/workflows/windows-nightly.yml
index 36a60c3d7..39960c3db 100644
--- a/.github/workflows/windows-nightly.yml
+++ b/.github/workflows/windows-nightly.yml
@@ -156,3 +156,4 @@ jobs:
       with:
         name: hledger.zip
         path: hledger.zip
+