Updates to TE and COWFE

- Minor updates to TE.COM and COWFE.COM provided by @Laci1953.
- Fixed typo in TE ReadMe identified by @stickbreaker.

Co-Authored-By: ladislau szilagyi <87603175+Laci1953@users.noreply.github.com>

Source/Images/Common/All/u10/TE.DOC

@@ -62,7 +62,7 @@ Of course, to "free" the allocated buffer, this "page index" must be provided to
 
 Text files up to 400KB can be edited.
 
-The 521KB version can be run on any CP/M version, regardless of its TPA area size.
+The 512KB version can be run on any CP/M version, regardless of its TPA area size.
 
 2. For the 128KB version: 
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