[MNT] doc/visual-programming as git submodule

.github/workflows/build-wheels.yaml

@@ -47,6 +47,8 @@ jobs:
     steps:
       - name: Check out the repo
         uses: actions/checkout@v4
+        with:
+          submodules: 'true'
 
       - name: Set up QEMU
         if: runner.os == 'Linux'

.github/workflows/doc.yml

@@ -19,6 +19,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+        with:
+          submodules: 'true'
       - name: Setup Python
         uses: actions/setup-python@v5
         with:

.github/workflows/test.yml

@@ -14,6 +14,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         with:
+          submodules: 'true'
           fetch-depth: '2'
 
       - name: Setup Python

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "doc/visual-programming"]
+	path = doc/visual-programming
+	url = https://github.com/biolab/orange3-doc-visual-programming.git

.readthedocs.yaml

@@ -5,6 +5,9 @@ build:
    tools:
       python: "3.10"
 
+submodules:
+   include: all
+
 sphinx:
    # Path to the shared conf.py file.
    configuration: doc/conf.py