[FAB-10837] Fix links on releases

Links to git were broken on the
Releases page

Change-Id: I2e60c84c2e16a26f796197d6b1115ff4e9c641a7
Signed-off-by: pama-ibm <pama@ibm.com>

Author: pamandrejko

docs/source/releases.rst

@@ -1,11 +1,10 @@
 Releases
 ========
 
-The latest release is
-`v1.2.0-rc1 <https://github.com/hyperledger/fabric/releases/tag/v1.2.0-rc1>`.
+The latest release is `v1.2.0-rc1 <https://github.com/hyperledger/fabric/releases/tag/v1.2.0-rc1>`__.
 
 All of the other Fabric releases are documented
-`here <https://github.com/hyperledger/fabric/releases>`.
+`here <https://github.com/hyperledger/fabric/releases>`__.
 
 .. Licensed under Creative Commons Attribution 4.0 International License
    https://creativecommons.org/licenses/by/4.0/