Update mosh 1.3.0 release announcement URL to corrected version

Author: keithw

index.html

@@ -161,7 +161,7 @@ <h1>Recent News</h1>
 
   <ul id="news-list">
     <li><b>March 25,
-2017</b>: <a href="http://mailman.mit.edu/pipermail/mosh-users/2017-March/000340.html">Mosh
+2017</b>: <a href="http://mailman.mit.edu/pipermail/mosh-users/2017-March/000341.html">Mosh
 1.3.0 released</a>, with John Hood as release lead. The release
 includes broader platform compatibility, robustness improvements,
 better testing, and fixes for excess CPU consumption in some cases. We