Update release notes for chimera fixes

Corrected the descriptions regarding file creation and attribute handling in the release notes.

Author: kofemann

release-notes-11.2

@@ -91,12 +91,12 @@ dCache now  replies w/ 413 Entity Too Large code when various bulk request limit
 ### chimera
 
 
-File creation with non basic attributes is now an atomic operation, as the namespace provided can implement it as `create+set attr`. 
-If the initial file attributes doesn't allow set attribute operation, then such create request will fail.
+File creation with non-basic attributes is not an atomic operation, as the provided namespace may implement it as `create+set attr`. 
+If the initial file attributes don't allow the set-attribute operation, the create request will fail.
 
-thei is now fixed and  he initial, non basic attributes can be applied on create.
+This is now fixed, and the initial, non-basic attributes can be applied on create.
 
-If tag is only created without any content then ResultSet#getBinaryStream return null as a stream which will trigger NPE.
+If a directory tag is created without any content, ResultSet#getBinaryStream returns null, which will trigger an NPE.
 
 This is now fixed.