Import docs into main repository (#2874)

* import docs into main repository

Signed-off-by: Matti Ranta <matti@mdranta.net>

docs/Makefile

@@ -0,0 +1,29 @@
+THEME := themes/gitea
+PUBLIC := public
+ARCHIVE := https://dl.gitea.io/theme/master.tar.gz
+
+.PHONY: all
+all: build
+
+.PHONY: clean
+clean:
+	rm -rf $(PUBLIC) $(THEME)
+
+.PHONY: trans-copy
+trans-copy:
+	@bash scripts/trans-copy
+
+.PHONY: server
+server: $(THEME)
+	hugo server
+
+.PHONY: build
+build: $(THEME)
+	hugo --cleanDestinationDir
+
+.PHONY: update
+update: $(THEME)
+
+$(THEME):
+	mkdir -p $@
+	curl -s $(ARCHIVE) | tar xz -C $@