Add v1.5.13 changelog

Author: em-transfer-user

docs/source/general/changelog.rst

@@ -11,7 +11,11 @@ Version 1.5
 Version latest (Current master branch, might be unstable)
 ********************************************************
 
+Version 1.5.13
+**************
+
     - Set project pattern as default for the Project Name
+    - Fix problem of mistyped e2proc2d.py option unstacking that lead to crashes
 
 Version 1.5.11
 **************