Update install-guide.html

documentation/docs/install-guide.html

@@ -179,7 +179,7 @@ stop the service.</p>
 <p>Note: the graphical launcher is not compatible with the Windows service. If you install the service, you should use service controls
 as described above to control the server rather than the graphical launcher.</p>
 
-<p><b>Upgrading Note: you should stop Openfire service before running the installer to upgrade to the newer version.</b></p>
+<p><b>Upgrading Note:</b> you should stop Openfire service before running the installer to upgrade to the newer version.</p>
 
 <h3>Custom Parameters</h3>