Integrate Mockup's documentation

.gitmodules

@@ -10,3 +10,7 @@
 	path = submodules/plone.api
 	url = https://github.com/plone/plone.api.git
 	branch = master
+[submodule "submodules/mockup"]
+	path = submodules/mockup
+	url = https://github.com/plone/mockup.git
+	branch = improve-docs

Makefile

@@ -61,8 +61,15 @@ docs/volto:
 	@echo
 	@echo "Documentation of volto initialized."
 
+docs/mockup:
+	git submodule init; \
+	git submodule update; \
+	ln -s ../submodules/mockup ./docs/mockup
+	@echo
+	@echo "Documentation of mockup initialized."
+
 .PHONY: deps
-deps: bin/python docs/volto docs/plone.restapi docs/plone.api  ## Create Python virtual environment, install requirements, initialize or update the volto, plone.restapi, and plone.api submodules, and finally create symlinks to the source files.
+deps: bin/python docs/volto docs/plone.restapi docs/plone.api docs/mockup  ## Create Python virtual environment, install requirements, initialize or update the volto, plone.restapi, plone.api, and mockup submodules, and finally create symlinks to the source files.
 
 
 .PHONY: html
@@ -235,6 +242,7 @@ netlify:
 	ln -s ../submodules/volto/docs/source ./docs/volto
 	ln -s ../submodules/plone.restapi ./docs/plone.restapi
 	ln -s ../submodules/plone.api/docs ./docs/plone.api
+	ln -s ../submodules/mockup ./docs/mockup
 	cd $(DOCS_DIR) && sphinx-build -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html && cp ./netlify_robots.txt $(BUILDDIR)/html/robots.txt
 
 .PHONY: storybook

docs/_templates/search.html

@@ -92,6 +92,7 @@ <h1 id="search-documentation">{{ _('Search') }}</h1>
               ["classic-ui","Classic UI"],
               ["volto","Frontend"],
               ["contributing","Contributing"],
+              ["mockup","Mockup"],
             ] %}
             <div class="form-check">
               <input class="form-check-input" type="radio" name="doc_section" id="doc_section_{{id}}" value="{{id}}">
@@ -133,4 +134,4 @@ <h1 id="search-documentation">{{ _('Search') }}</h1>
         });
     </script>
 
-{% endblock %}
+{% endblock %}

docs/classic-ui/index.md

@@ -62,4 +62,5 @@ theming/index
 viewlets
 views
 whatsnew
+../mockup/README.md
 ```