Merge branch 'jr/hash-migration-plan-doc'

Lay out plans for weaning us off of SHA-1.

* jr/hash-migration-plan-doc:
  technical doc: add a design doc for hash function transition

Author: gitster

Documentation/Makefile

@@ -67,6 +67,7 @@ SP_ARTICLES += howto/maintain-git
 API_DOCS = $(patsubst %.txt,%,$(filter-out technical/api-index-skel.txt technical/api-index.txt, $(wildcard technical/api-*.txt)))
 SP_ARTICLES += $(API_DOCS)
 
+TECH_DOCS += technical/hash-function-transition
 TECH_DOCS += technical/http-protocol
 TECH_DOCS += technical/index-format
 TECH_DOCS += technical/pack-format