Python: Apply suggestions from code review

Co-authored-by: yoff <lerchedahl@gmail.com>

Author: RasmusWL

python/ql/test/library-tests/frameworks/django-orm/README.md

@@ -3,7 +3,7 @@ The interesting ORM tests files can be found under `testapp/orm_*.py`. These are
 List of interesting tests files (that might go out of date if it is forgotten :flushed:):
 
 - [testapp/orm_tests.py](testapp/orm_tests.py): which tests flow from source to sink
-- [testapp/orm_security_tests.py](testapp/orm_form_test.py): shows how forms can be used to save Models to the DB
+- [testapp/orm_form_test.py](testapp/orm_form_test.py): shows how forms can be used to save Models to the DB
 - [testapp/orm_security_tests.py](testapp/orm_security_tests.py): which highlights some interesting interactions with security queries
 - [testapp/orm_inheritance.py](testapp/orm_inheritance.py): which highlights how inheritance of ORM models works
 

python/ql/test/library-tests/frameworks/django-orm/testapp/orm_security_tests.py

@@ -68,7 +68,7 @@ def show_age(request):
 #
 # 1. We don't have any good way to determine what the validator actually does. So we
 #    don't have any way to determine if a validator would make data safe for a
-#    particular query. So we would have to blindly trust that if any validator what
+#    particular query. So we would have to blindly trust that if any validator was
 #    specified, that would mean data is always safe :| We still want to produce more
 #    results, so by default, we would want to do it this way, and live live with the FPs
 #    that arise -- if it turns out that is too troublesome, we can look more into it.

python/ql/test/library-tests/frameworks/django-orm/testapp/orm_tests.py

@@ -200,7 +200,7 @@ def test_save9_load():
 # --------------------------------------
 
 class save10_BlogPost(models.Model):
-    # dummy contet, only has automatic `id` field
+    # dummy content, only has automatic `id` field
     pass
 
 class save10_Comment(models.Model):