Update release_notes/v0.5.md

Author: Peng Zhao

release_notes/v0.5.md

@@ -22,4 +22,4 @@ In version 0.5, Hyper and runV introduced many features, improved stability, and
 - Add integration test suite
 - Many stability improvements and bug fixes.
 
-More details on our website: [(http://hyper.sh)](http://hyper.sh/).
+More details on our website: [(http://hyper.sh)](http://hyper.sh/).