Update releases.rst

Author: jordanpadams

docs/source/releases/releases.rst

@@ -4,9 +4,9 @@ Upcoming
     :glob:
     :maxdepth: 1
 
-    Latest In-Dev Software RDD, (17) <17/rdd>
-    Near-Term Plans (17) <17/plan>
-    Software Summary (17) <17/index>
+    Latest In-Dev Software RDD, (B17) <17/rdd>
+    Near-Term Plans (B17) <17/plan>
+    Software Summary (B16) <16/index>
 
 Past Releases
 =============