Add VPATCH draft in MMark format for easier editing

Author: ronaldtse

Makefile

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+#
+# Makefile to build Internet Drafts using docker image "paulej/rfctools".
+#
+
+SRC  := $(wildcard draft-*.md)
+TXT  := $(patsubst %.md,%.txt,$(SRC))
+UID  := `id -u`
+GID  := `id -g`
+CWD  := `pwd`
+
+# Ensure the xml2rfc cache directory exists locally
+IGNORE := $(shell mkdir -p $(HOME)/.cache/xml2rfc)
+
+all: $(TXT) $(HTML)
+
+clean:
+	rm -f draft-*.txt draft-*.xml
+
+%.txt: %.md
+	docker run --rm \
+		--user=$(UID):$(GID) \
+		-v $(CWD):/rfc \
+		-v $(HOME)/.cache/xml2rfc:/var/cache/xml2rfc \
+		paulej/rfctools \
+		md2rfc $^
+
+open:
+	open *.txt

draft-calconnect-vpatch.md

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+{{sections/00-front.md}}
+{{sections/00-abstract.md}}
+{{sections/00-open-issues.md}}
+
+{mainmatter}
+
+{{sections/01-intro.md}}
+{{sections/02-conventions.md}}
+{{sections/03-overview.md}}
+{{sections/04-patch.md}}
+{{sections/05-icalendar-path.md}}
+{{sections/06-add-update-comp.md}}
+{{sections/07-add-update-prop.md}}
+{{sections/08-delete.md}}
+{{sections/09-add-update-propp.md}}
+{{sections/10-icalendar-ext.md}}
+{{sections/11-additional.md}}
+{{sections/12-itip.md}}
+{{sections/13-caldav.md}}
+{{sections/14-security.md}}
+{{sections/15-privacy.md}}
+{{sections/16-iana.md}}
+{{sections/97-examples.md}}
+{{sections/98-references.md}}
+{{sections/99-acknowledgements.md}}
+
+{{sections/98-references.md}}
+
+{backmatter}
+{{sections/aa-change-history.md}}
+{{sections/99-acknowledgements.md}}
+{{sections/97-examples.md}}
+