Merge branch 'homepage' into syntax-highlighting

* homepage:
  fix remaining references
  Update .github/workflows/shadow-repo.yml
  Add shadow repo workflow
  Update source/community.md
  font-size revert until future PR
  apply style to class instead of alert heading

.github/workflows/shadow-repo.yml

@@ -0,0 +1,72 @@
+name: Sync with shadow repo
+
+on:
+  push:
+  create:
+  delete:
+  pull_request:
+    types: [opened]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name }}
+  cancel-in-progress: true
+
+jobs:
+  sync-branch:
+    name: Create/delete shadow branch
+    runs-on: ubuntu-latest
+    if: github.event.ref_type == 'branch'
+    steps:
+      - name: Clone shadow repo
+        uses: actions/checkout@v3
+        with:
+          repository: ${{ vars.SHADOW_OWNER }}/${{ vars.SHADOW_REPO }}
+          ssh-key: ${{ secrets.SHADOW_REPO_PRIVATE_KEY }}
+          ref: main
+      - name: Create branch on shadow repo
+        if: github.event_name == 'create'
+        run: git push origin main:${{ github.event.ref }}
+      - name: Delete branch on shadow repo
+        if: github.event_name == 'delete'
+        run: git push origin --delete ${{ github.event.ref }}
+
+  push-branch:
+    name: Push to shadow branch
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version-file: .nvmrc
+          cache: yarn
+      - run: yarn install
+      - run: yarn build-prod
+      - name: Clone shadow repo
+        uses: actions/checkout@v3
+        with:
+          repository: ${{ vars.SHADOW_OWNER }}/${{ vars.SHADOW_REPO }}
+          ssh-key: ${{ secrets.SHADOW_REPO_PRIVATE_KEY }}
+          ref: ${{ github.ref_name }}
+          path: shadow-repo
+      - name: Push to shadow branch
+        run: |
+          cd shadow-repo
+          rm -rf ./*
+          cp -rT ../_site .
+          git config user.name github-actions
+          git config user.email github-actions@github.com
+          git add -A
+          git commit --allow-empty -m "Update from https://github.com/${{ github.repository }}/commit/${{ github.sha }}"
+          git push origin
+
+  diff-link:
+    name: Create comment to diff link
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request' && github.event.action == 'opened'
+    steps:
+      - uses: peter-evans/create-or-update-comment@v2
+        with:
+          issue-number: ${{ github.event.number }}
+          body: |
+            View diff of compiled files (may take a few minutes): https://github.com/${{ vars.SHADOW_OWNER }}/${{ vars.SHADOW_REPO }}/compare/${{ github.event.pull_request.base.ref }}..${{ github.event.pull_request.head.ref }}

source/_includes/header.liquid

@@ -5,7 +5,7 @@
   role="banner">
   <div class="sl-c-alert sl-c-alert--special">
     <div class="sl-l-container">
-      <h2>Black Lives Matter</h2>
+      <h2 class="sl-c-alert-title">Black Lives Matter</h2>
       {% renderTemplate 'md' %}
         Sass stands with the protesters against police violence. We encourage our users to
         **get in the streets and join them if you can**.

source/assets/sass/components/_alerts.scss

@@ -14,8 +14,6 @@
   padding-top: var(--alert-padding-block, var(--gutter-minus));
   text-align: var(--alert-align, center);
 
-  h2,
-  h3,
   p,
   ul,
   dl {
@@ -60,3 +58,7 @@
   --alert-bg: black;
   --alert-padding-block: var(--gutter-triple);
 }
+
+.sl-c-alert-title {
+  margin-top: 0;
+}

source/assets/sass/components/_callouts.scss

@@ -54,7 +54,7 @@
     font-size: 1.25rem;
 
     .sl-c-callout {
-      font-size: var(--gutter);
+      font-size: 1rem;
     }
   }
 }

source/community.md

@@ -12,7 +12,7 @@ eleventyComputed:
       ## Resources
 
       ### [Jump Start Sass](https://amzn.to/2LKF0uR)
-      by Hugo Giraudel and Miriam Suzanne
+      by Kitty Giraudel and Miriam Suzanne
 
       ### [Pragmatic Guide to Sass 3: Tame the Modern Style Sheet](https://amzn.to/2LEwXiZ)
       by Hampton Lintorn Catlin and Michael Lintorn Catlin