Fix many spell glitches in docstrings and comments

These were revealed by running `pylint --disable all --enable spelling --spelling-dict en_US` over all sources.

Closes: #5868
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/5868
Pull-request-sha: bb249195d92e3b806e81ecf1192d5a1b3cd5db48

Change-Id: I96080ec93a9fbd20ce21e9e16265b3c77f22bb14

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/sqlalchemy/dialects/postgresql/ranges.py b/lib/sqlalchemy/dialects/postgresql/ranges.py
index 1f6f75f6d..ab44fa590 100644
--- a/lib/sqlalchemy/dialects/postgresql/ranges.py
+++ b/lib/sqlalchemy/dialects/postgresql/ranges.py
@@ -13,7 +13,7 @@ __all__ = ("INT4RANGE", "INT8RANGE", "NUMRANGE")
 class RangeOperators(object):
     """
     This mixin provides functionality for the Range Operators
-    listed in Table 9-44 of the `postgres documentation`__ for Range
+    listed in Table 9-44 of the `PostgreSQL documentation`__ for Range
     Functions and Operators. It is used by all the range types
     provided in the ``postgres`` dialect and can likely be used for
     any range types you create yourself.
@@ -21,7 +21,7 @@ class RangeOperators(object):
     __ http://www.postgresql.org/docs/devel/static/functions-range.html
 
     No extra support is provided for the Range Functions listed in
-    Table 9-45 of the postgres documentation. For these, the normal
+    Table 9-45 of the PostgreSQL documentation. For these, the normal
     :func:`~sqlalchemy.sql.expression.func` object should be used.
 
     """
@@ -94,7 +94,7 @@ class RangeOperators(object):
         def __add__(self, other):
             """Range expression. Returns the union of the two ranges.
             Will raise an exception if the resulting range is not
-            contigous.
+            contiguous.
             """
             return self.expr.op("+")(other)