Move API docs generation to docs/api

.github/workflows/generate_docs.yaml

@@ -23,12 +23,12 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r docs/requirements.txt
+          pip install -r docs/api/requirements.txt
           pip install .
 
       - name: Generate API documentation
         run: |
-          cd docs
+          cd docs/api
           python generate_docs.py
 
       - name: Create Pull Request
@@ -39,7 +39,7 @@ jobs:
           body: |
             Automated PR to update API documentation.
 
-            - Generated using `generate_docs.py`
+            - Generated using `docs/api/generate_docs.py`
             - Triggered by: ${{ github.event_name }}
           branch: update-api-docs
           delete-branch: true