Edit 0.14.1 release notes to separate multiple PRs with "," instead of "/"

Author: harding

_releases/0.14.1.md

@@ -117,7 +117,7 @@ git merge commit are mentioned.
 - #10133 `ab864d3` Clean up calculations of pcoinsTip memory usage (morcos)
 
 ### P2P protocol and network code
-- #9953/#10013 `d2548a4` Fix shutdown hang with >= 8 -addnodes set (TheBlueMatt)
+- #9953,#10013 `d2548a4` Fix shutdown hang with >= 8 -addnodes set (TheBlueMatt)
 - #10176 `30fa231` net: gracefully handle NodeId wrapping (theuni)
 
 ### Build system
@@ -127,8 +127,8 @@ git merge commit are mentioned.
 - #10060 `ddc2dd1` Ensure an item exists on the rpcconsole stack before adding (achow101)
 
 ### Mining
-- #9955/#10006 `569596c` Don't require segwit in getblocktemplate for segwit signalling or mining (sdaftuar)
-- #9959/#10127 `b5c3440` Prevent slowdown in CreateNewBlock on large mempools (sdaftuar)
+- #9955,#10006 `569596c` Don't require segwit in getblocktemplate for segwit signalling or mining (sdaftuar)
+- #9959,#10127 `b5c3440` Prevent slowdown in CreateNewBlock on large mempools (sdaftuar)
 
 ### Tests and QA
 - #10157 `55f641c` Fix the `mempool_packages.py` test (sdaftuar)