update changes/release.txt

Author: bdbaddog

CHANGES.txt

@@ -91,6 +91,7 @@ RELEASE  VERSION/DATE TO BE FILLED IN LATER
       harder to decode non-UTF-8 text. SCons.Util.to_Text now exists
       to convert a byte stream, such as "raw" file data.  Fixes #3569, #4462.
       The Pseudo manpage entry was updated to provide more clarity.
+    - Clarify how SCons finds the project top directory, and what that is used for.
     - The internal routine which implements the PyPackageDir function
       would fail with an exception if called with a module which is
       not found.  It will now return None.  Updated manpage entry and

RELEASE.txt

@@ -90,12 +90,18 @@ DOCUMENTATION
 -------------
 
 - Fixed the Scanner examples in the User Guide to be runnable and added
-  some more explantion. Clarified discussion of the scanner function in
+  some more explanation. Clarified discussion of the scanner function in
   the Scanner Objects section of the manpage.
 - The manpage entry for Pseudo was clarified.
 - The manpage entry for SharedLibrary was clarified.
 - Update API docs for Warnings framework; add two warns to manpage
   enable/disable control.
+- More consistent use of &Python; in the manpage.  A few links added.
+  A warning about overwriting env['ENV'] and one about Configure
+  checks possibly not running in in no-exec mode also added.
+- Clarify how SCons finds the project top directory, and what that is used for.
+
+
 
 DEVELOPMENT
 -----------