restructure to account for new theme, add new build process, update readme

docs/Makefile

@@ -0,0 +1,86 @@
+# You can set these variables from the command line.
+POETRY        = $(HOME)/.poetry/bin/poetry
+SPHINXOPTS    = -j auto
+SPHINXBUILD   = $(POETRY) run sphinx-build
+PAPER         =
+BUILDDIR      = _build
+SOURCEDIR     = source
+
+# Internal variables.
+PAPEROPT_a4     = -D latex_paper_size=a4
+PAPEROPT_letter = -D latex_paper_size=letter
+ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) $(SOURCEDIR)
+TESTSPHINXOPTS  = $(ALLSPHINXOPTS) -W --keep-going
+
+# the i18n builder cannot share the environment and doctrees with the others
+I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) $(SOURCEDIR)
+
+.PHONY: all
+all: dirhtml
+
+.PHONY: pristine
+pristine: clean
+	git clean -dfX
+
+.PHONY: setup
+setup:
+	./_utils/setup.sh
+
+.PHONY: clean
+clean:
+	rm -rf $(BUILDDIR)/*
+
+.PHONY: preview
+preview: setup
+	$(POETRY) run sphinx-autobuild -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml --port 5500
+
+.PHONY: dirhtml
+dirhtml: setup
+	$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
+
+.PHONY: singlehtml
+singlehtml: setup
+	$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
+	@echo
+	@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
+
+.PHONY: test
+test: setup
+	$(SPHINXBUILD) -b dirhtml $(TESTSPHINXOPTS) $(BUILDDIR)/dirhtml
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
+
+.PHONY: epub
+epub: 	setup
+	$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
+	@echo
+	@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
+
+.PHONY: epub3
+epub3:	setup
+	$(SPHINXBUILD) -b epub3 $(ALLSPHINXOPTS) $(BUILDDIR)/epub3
+	@echo
+	@echo "Build finished. The epub3 file is in $(BUILDDIR)/epub3."
+
+.PHONY: dummy
+dummy: 	setup
+	$(SPHINXBUILD) -b dummy $(ALLSPHINXOPTS) $(BUILDDIR)/dummy
+	@echo
+	@echo "Build finished. Dummy builder generates no files."
+
+.PHONY: linkcheck
+linkcheck: setup
+	$(SPHINXBUILD) -b linkcheck $(SOURCEDIR) $(BUILDDIR)/linkcheck
+
+.PHONY: multiversion
+multiversion: setup
+	@mkdir -p $(HOME)/.cache/pypoetry/virtualenvs
+	$(POETRY) run sphinx-multiversion source $(BUILDDIR)/dirhtml
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
+
+.PHONY: multiversionpreview
+multiversionpreview: multiversion
+	$(POETRY) run python3 -m http.server 5500 --directory $(BUILDDIR)/dirhtml