Docs: Update readme

README.org

@@ -463,7 +463,8 @@ Simple links may also be written manually in either sexp or non-sexp form, like:
 
 ** 0.6-pre
 
-Nothing new yet.
+*Internal*
++  Predicates are now defined more cleanly with a macro that consolidates functionality related to each predicate.  This will also allow users to more easily define custom predicates.
 
 ** 0.5
 

org-ql.info

@@ -859,7 +859,10 @@ File: README.info,  Node: 06-pre,  Next: 05,  Up: Changelog
 5.1 0.6-pre
 ===========
 
-Nothing new yet.
+*Internal*
+   • Predicates are now defined more cleanly with a macro that
+     consolidates functionality related to each predicate.  This will
+     also allow users to more easily define custom predicates.
 
 
 File: README.info,  Node: 05,  Next: 049,  Prev: 06-pre,  Up: Changelog
@@ -1373,29 +1376,29 @@ Node: Links29568
 Node: Tips30255
 Node: Changelog30573
 Node: 06-pre31269
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-Node: Notes47896
+Node: Notes48088
-Node: Comparison with Org Agenda searches48058
+Node: Comparison with Org Agenda searches48250
-Node: org-sidebar48930
+Node: org-sidebar49122
-Node: License49209
+Node: License49401
 
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