Merge PR cosmos#5218: Update ADR-006's progress

docs/architecture/adr-006-secret-store-replacement.md

@@ -2,7 +2,8 @@
 
 ## Changelog
 
-- July 29, 2019: Initial draft
+- July 29th, 2019: Initial draft
+- September 11th, 2019: Work has started
 
 ## Context
 
@@ -50,5 +51,9 @@ Running tests locally on a Mac require numerous repetitive password entries.
 
 ## References
 
-- {reference link}
+- #4754 Switch secret store to the keyring secret store (original PR by @poldsam) [__CLOSED__]
+- #5029 Add support for github.com/99designs/keyring-backed keybases [__MERGED__]
+- #5097 Add keys migrate command [__MERGED__]
+- #5180 Drop on-disk keybase in favor of keyring [_PENDING_REVIEW_]
+- cosmos/gaia#164 Drop on-disk keybase in favor of keyring (gaia's changes) [_PENDING_REVIEW_]