update formatting and add comment to build.yml

.github/workflows/build.yml

@@ -29,6 +29,7 @@ env:
   CURL_CACHE_DIR: ~/.cache/curl
   IMAGE_NAME: cisagov/con-pca-tasks
   PIP_CACHE_DIR: ~/.cache/pip
+  # Available platform options used to select the correct executable build
   PLATFORMS: "linux/amd64,linux/arm64"
   PRE_COMMIT_CACHE_DIR: ~/.cache/pre-commit
   RUN_TMATE: ${{ secrets.RUN_TMATE }}
@@ -261,27 +262,27 @@ jobs:
           # https://github.com/opencontainers/image-spec/blob/master/annotations.md
           labels: "\
             org.opencontainers.image.created=${{
-            needs.prepare.outputs.created }}
+              needs.prepare.outputs.created }}
 
             org.opencontainers.image.description=${{
-            fromJson(needs.prepare.outputs.repometa).description }}
+              fromJson(needs.prepare.outputs.repometa).description }}
 
             org.opencontainers.image.licenses=${{
-            fromJson(needs.prepare.outputs.repometa).license.spdx_id }}
+              fromJson(needs.prepare.outputs.repometa).license.spdx_id }}
 
             org.opencontainers.image.revision=${{ github.sha }}
 
             org.opencontainers.image.source=${{
-            fromJson(needs.prepare.outputs.repometa).clone_url }}
+              fromJson(needs.prepare.outputs.repometa).clone_url }}
 
             org.opencontainers.image.title=${{
-            fromJson(needs.prepare.outputs.repometa).name }}
+              fromJson(needs.prepare.outputs.repometa).name }}
 
             org.opencontainers.image.url=${{
-            fromJson(needs.prepare.outputs.repometa).html_url }}
+              fromJson(needs.prepare.outputs.repometa).html_url }}
 
             org.opencontainers.image.version=${{
-            needs.prepare.outputs.source_version }}"
+              needs.prepare.outputs.source_version }}"
       - name: Compress image
         run: gzip dist/image.tar
       - name: Upload artifacts
@@ -390,27 +391,27 @@ jobs:
           # https://github.com/opencontainers/image-spec/blob/master/annotations.md
           labels: "\
             org.opencontainers.image.created=${{
-            needs.prepare.outputs.created }}
+              needs.prepare.outputs.created }}
 
             org.opencontainers.image.description=${{
-            fromJson(needs.prepare.outputs.repometa).description }}
+              fromJson(needs.prepare.outputs.repometa).description }}
 
             org.opencontainers.image.licenses=${{
-            fromJson(needs.prepare.outputs.repometa).license.spdx_id }}
+              fromJson(needs.prepare.outputs.repometa).license.spdx_id }}
 
             org.opencontainers.image.revision=${{ github.sha }}
 
             org.opencontainers.image.source=${{
-            fromJson(needs.prepare.outputs.repometa).clone_url }}
+              fromJson(needs.prepare.outputs.repometa).clone_url }}
 
             org.opencontainers.image.title=${{
-            fromJson(needs.prepare.outputs.repometa).name }}
+              fromJson(needs.prepare.outputs.repometa).name }}
 
             org.opencontainers.image.url=${{
-            fromJson(needs.prepare.outputs.repometa).html_url }}
+              fromJson(needs.prepare.outputs.repometa).html_url }}
 
             org.opencontainers.image.version=${{
-            needs.prepare.outputs.source_version }}"
+              needs.prepare.outputs.source_version }}"
       - name: Publish README.md to Docker Hub
         env:
           DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}