Add Makefile for Sphinx documentation build process

Author: WhiteSymmetry

docs/Makefile

@@ -0,0 +1,21 @@
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
+SOURCEDIR     = source
+BUILDDIR      = build
+
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+apidoc:
+	@sphinx-apidoc --force --separate --module-first --no-toc -o source/api ../kha256/
+
+html: apidoc
+	@$(SPHINXBUILD) -M html "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+clean:
+	rm -rf $(BUILDDIR)/* source/api/*
+
+.PHONY: help apidoc html clean
+
+%: Makefile
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)