Fixes documentation author table in Changelog

Changelog

@@ -95,29 +95,29 @@ new in Celery 3.1.
 
 - **Documentation**: Includes improvements by:
 
-    Bryson
-    Caleb Mingle
-    Christopher Martin
-    Dieter Adriaenssens
-    Jason Veatch
-    Jeremy Cline
-    Juan Rossi
-    Kevin Harvey
-    Kevin McCarthy
-    Kirill Pavlov
-    Marco Buttu
-    Mayflower
-    Mher Movsisyan
-    Michael Floering
-    michael-k
-    Nathaniel Varona
-    Rudy Attias
-    Ryan Luckie
-    Steven Parker
-    squfrans
-    Tadej Janež
-    TakesxiSximada
-    Tom S
+    - Bryson
+    - Caleb Mingle
+    - Christopher Martin
+    - Dieter Adriaenssens
+    - Jason Veatch
+    - Jeremy Cline
+    - Juan Rossi
+    - Kevin Harvey
+    - Kevin McCarthy
+    - Kirill Pavlov
+    - Marco Buttu
+    - Mayflower
+    - Mher Movsisyan
+    - Michael Floering
+    - michael-k
+    - Nathaniel Varona
+    - Rudy Attias
+    - Ryan Luckie
+    - Steven Parker
+    - squfrans
+    - Tadej Janež
+    - TakesxiSximada
+    - Tom S
 
 .. _version-3.1.19: