[Trivialfix]Fix typos in trove

Fix the typos found in trove.

Change-Id: I47c861262f1a1c48fc4057875e724f1dacfbb94c

releasenotes/notes/fix-cluster-type-error-71cd846897dfd32e.yaml

@@ -4,5 +4,5 @@ fixes:
     while setting the nics on a create call. When we called cast to set()
     the object was a list of lists. The set method can not has a list so
     this was causesing a unhashable error. The change is to make the
-    instance_nics a list of strings (what we originaly expected) to
+    instance_nics a list of strings (what we originally expected) to
     resolve this issue. Bug 1570602.

trove/common/rpc/serializer.py

@@ -18,7 +18,7 @@ from trove.common.context import TroveContext
 
 
 class TroveSerializer(messaging.Serializer):
-    """The Trove serializer class that handles class inheritence and base
+    """The Trove serializer class that handles class inheritance and base
        serializers.
     """
 

trove/templates/cassandra/config.template

@@ -556,7 +556,7 @@ tombstone_failure_threshold: 100000
 # Increase if your rows are large, or if you have a very large
 # number of rows per partition.  The competing goals are these:
 #   1) a smaller granularity means more index entries are generated
-#      and looking up rows withing the partition by collation column
+#      and looking up rows within the partition by collation column
 #      is faster
 #   2) but, Cassandra will keep the collation index in memory for hot
 #      rows (as part of the key cache), so a larger granularity means