Final changes for RFC 9420 (#885)

* Add AUTH48 tooling

* RLB review of RFC Editor's Proposed Changes (#879)

* RLB Edits through Section 5

* Update tooling to make diff cleaner

* Complete first pass

* Fix figures

* Apply caplitalization changes

* Final edits

* Address comments from @Bren2010

* Expand RLB notes

* Address comments from @Bren2010 and @rohan-wire

* Make 'cipher suite' two words

* One more minor clarification for AUTH48 (#882)

* Round 2 of AUTH48 edits (#883)

* Improve rendering of QUESTIONS.md (#884)

* Remove HTML comments

* Fix inline tags

* One last edit

* Rename Markdown file to reflect RFC number

.gitignore

@@ -21,3 +21,6 @@ venv/
 lib
 draft-ietf-mls-protocol.xml
 draft-ietf-mls-protocol.tls
+
+# AUTH48 temporary artifacts
+auth48/rfc9420.gen.xml

auth48/Makefile

@@ -0,0 +1,28 @@
+DRAFT=draft-ietf-mls-protocol
+RFC=9420
+RFC_ED_URL="https://www.rfc-editor.org/authors/rfc${RFC}.xml"
+
+.PHONY: prepare gen diff
+
+init:
+	curl -s ${RFC_ED_URL} | \
+		xmllint --exc-c14n - | \
+		xmllint --format - \
+		>rfc${RFC}.authors.xml 
+
+gen: rfc${RFC}.gen.xml
+
+rfc${RFC}.gen.xml: ../${DRAFT}.md
+	make -C .. ${DRAFT}.xml
+	mv ../${DRAFT}.xml .
+	python3 xml-clean.py <${DRAFT}.xml | \
+		xmllint --exc-c14n - | \
+		xmllint --format - | \
+		python3 text-clean.py >rfc${RFC}.gen.xml
+	rm ${DRAFT}.xml
+
+diff: rfc${RFC}.authors.xml rfc${RFC}.gen.xml
+	mvim -d rfc${RFC}.gen.xml rfc${RFC}.authors.xml
+
+clean:
+	rm rfc${RFC}.gen.xml