documentation: add tutorial for first contribution

diff --git a/Documentation/RelNotes/2.15.1.txt b/Documentation/RelNotes/2.15.1.txt
index 81dd64b4ad3b0722083bebd1e698d434c5a0fa86..ec06704e637d538d510e8f3a110cfacb3e79d1e4 100644 (file)
--- a/Documentation/RelNotes/2.15.1.txt
+++ b/Documentation/RelNotes/2.15.1.txt
@@ -76,5 +76,13 @@ Fixes since v2.15
  * We used to add an empty alternate object database to the system
    that does not help anything; it has been corrected.
 
+ * Error checking in "git imap-send" for empty response has been
+   improved.
+
+ * An ancient bug in "git apply --ignore-space-change" codepath has
+   been fixed.
+
+ * There was a recent semantic mismerge in the codepath to write out a
+   section of a configuration section, which has been corrected.
 
 Also contains various documentation updates and code clean-ups.