Change reference to "mosh 1.3" now that we have switched to semver

Author: keithw

index.html

@@ -954,8 +954,8 @@ <h1>Frequently Asked Questions</h1>
 
   <dt>Q: Why is my terminal's scrollback buffer incomplete?</dt>
 
-        <dd><p>Mosh 1.2 synchronizes only the visible state of the terminal.  Mosh
-        1.3 will have complete scrollback support; see <a
+        <dd><p>Mosh synchronizes only the <b>visible</b> state of the terminal.  We
+are tracking this issue; see <a
         href="https://github.com/keithw/mosh/issues/2">this issue</a> and the
         others which are linked from there.  For now, the workaround is to use
         <a href="https://www.gnu.org/software/screen/">screen</a> or <a