Update CI and docs to use submodules for maiko/notecards/loops/test

doHCFILES.yml: replace 5 separate checkout steps with a single
  checkout using submodules:true; remove now-redundant .git cleanup step.

buildLoadup.yml: add submodules:true to Checkout Medley; remove
  separate Checkout Notecards + tar steps (notecards.tgz was already
  commented out of the release push).

make-gh-pages.md: replace manual clone+copy instructions with
  git clone --recurse-submodules; remove rm -rf of submodule dirs.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.github/workflows/buildLoadup.yml

@@ -124,6 +124,8 @@ jobs:
       # Checkout latest commit
       - name: Checkout Medley
         uses: actions/checkout@v4
+        with:
+          submodules: true
 
       # Setup release tag
       - name: Setup Release Tag
@@ -191,18 +193,6 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.MAIKO_TOKEN }}
 
-      # Checkout Notecards and tar it in the tarballsdir
-      - name: Checkout Notecards
-        uses: actions/checkout@v4
-        with:
-          repository: ${{ github.repository_owner }}/notecards
-          path: ./notecards
-      - name: Tar notecards into tarball dir
-        run: |
-          mv ./notecards ../notecards
-          cd ../notecards
-          git archive --format=tgz --output="${TARBALL_DIR}/notecards.tgz" --prefix=notecards/ main
-
       # Install vnc
       - name: Install vnc
         run: sudo apt-get update && sudo apt-get install -y tightvncserver

.github/workflows/doHCFILES.yml

@@ -51,33 +51,8 @@ jobs:
 
       - name: Checkout Medley repo
         uses: actions/checkout@v4
-
-      - name: Checkout maiko
-        uses: actions/checkout@v4
         with:
-          repository: ${{ github.repository_owner }}/maiko
-          path: ./maiko
-
-      - name: Checkout notecards
-        uses: actions/checkout@v4
-        with:
-          repository: ${{ github.repository_owner }}/notecards
-          path: ./notecards
-
-      - name: Checkout loops
-        uses: actions/checkout@v4
-        with:
-          repository: ${{ github.repository_owner }}/loops
-          path: ./loops
-
-      - name: Checkout test
-        uses: actions/checkout@v4
-        with:
-          repository: ${{ github.repository_owner }}/test
-          path: ./test
-
-      - name: Cleanup .git for notecards, loops, test
-        run: rm -rf ./notecards/.git ./loops/.git ./test/.git
+          submodules: true
 
       - name: Download Maiko
         run: |

.gitignore

@@ -5,9 +5,6 @@ tmp/*
 # releases directory
 releases/*
 
-# maiko directory
-maiko/
-
 
 # all PDFs (those explicitly checked in aren't ignored
 # normally when you have derived files, you ignore them from git

.gitmodules

@@ -0,0 +1,20 @@
+[submodule "maiko"]
+	path = maiko
+	url = https://github.com/Interlisp/maiko
+	branch = master
+[submodule "notecards"]
+	path = notecards
+	url = https://github.com/Interlisp/notecards
+	branch = main
+[submodule "loops"]
+	path = loops
+	url = https://github.com/Interlisp/loops
+	branch = main
+[submodule "test"]
+	path = test
+	url = https://github.com/Interlisp/test
+	branch = master
+[submodule "online"]
+	path = online
+	url = https://github.com/Interlisp/online
+	branch = main