Documentation fix-up: "its" vs. "it's"pr/91

Removed ungrammatical apostrophes from documentation, replacing
"it's" with "its" where appropriate (but in a few cases with "it is"
when that read better).

While doing that, I also fixed a couple of minor typos etc.
as I noticed them.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/sqlalchemy/orm/collections.py b/lib/sqlalchemy/orm/collections.py
index 87e351b6c..530cce962 100644
--- a/lib/sqlalchemy/orm/collections.py
+++ b/lib/sqlalchemy/orm/collections.py
@@ -445,7 +445,7 @@ class collection(object):
         The converter method will receive the object being assigned and should
         return an iterable of values suitable for use by the ``appender``
         method.  A converter must not assign values or mutate the collection,
-        it's sole job is to adapt the value the user provides into an iterable
+        its sole job is to adapt the value the user provides into an iterable
         of values for the ORM's use.
 
         The default converter implementation will use duck-typing to do the