Updated link to architecture 1.0 doc

Changed "TODO" to link to 1.0 arch. doc

Change-Id: Icc6ec00ffdfd41a7d1ee784c9af590a0d4c4a12c
Signed-off-by: Joshua Horton <[email protected]>
[ci skip]

Author: joshhus

docs/releases.md

@@ -6,7 +6,7 @@ A developer preview release of the Hyperledger Fabric intended
 to exercise the release logistics and stabilize a set of capabilities for
 developers to try out. This will be the last release under the original
 architecture. All subsequent releases will deliver on the
-[v1.0 architecture](TODO).
+[v1.0 architecture](https://github.com/hyperledger/fabric/blob/master/proposals/r1/Next-Consensus-Architecture-Proposal.md).
 
 Key enhancements: