Add URL to latest version.

Note that O and P are new page up/down in rationalization section.

docs/fseditor.txt

@@ -5,6 +5,9 @@ Documentation for fseditor.js
 
 fseditor.js is a Full Screen Editor (FSE) written in JS for Synchronet.
 
+The newest version of fseditor can always be download from:
+http://cvs.synchro.net/cgi-bin/viewcvs.cgi/*checkout*/src/exec/fseditor.js?rev=HEAD&content-type=text/plain
+
 To add fseditor.js to your FSE list, use the following settings:
 [JS FSE]
  1: Name                            JS FSE
@@ -83,7 +86,7 @@ Keepers:  ABCEFGHIJLMRWZ
 Lukewarm: KOPVY
 Changers: QU_
 
-The reason X and Y are in lukewarm instead of changers is that PgUp/PgDn should
+The reason O and P are in lukewarm instead of changers is that PgUp/PgDn should
 be both close together and enterable with one hand in my opinion.
 
 The following CTRL keys are currently unused: DNPSTX\