Fixed more ReST errors in docs

git-svn-id: http://code.djangoproject.com/svn/django/trunk@2812 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/cache.txt

@@ -18,7 +18,7 @@ That's where caching comes in.
 
 To cache something is to save the result of an expensive calculation so that
 you don't have to perform the calculation next time. Here's some pseudocode
-explaining how this would work for a dynamically generated Web page:
+explaining how this would work for a dynamically generated Web page::
 
     given a URL, try finding that page in the cache
     if the page is in the cache:

docs/model-api.txt

@@ -97,7 +97,7 @@ Django places only two restrictions on model field names:
 These limitations can be worked around, though, because your field name doesn't
 necessarily have to match your database column name. See `db_column`_ below.
 
-SQL reserved words, such as ``join``, ``where`` or ``select`, *are* allowed as
+SQL reserved words, such as ``join``, ``where`` or ``select``, *are* allowed as
 model field names, because Django escapes all database table names and column
 names in every underlying SQL query. It uses the quoting syntax of your
 particular database engine.

docs/templates.txt

@@ -894,12 +894,12 @@ Returns a boolean of whether the value's length is the argument.
 linebreaks
 ~~~~~~~~~~
 
-Converts newlines into ``<p>`` and ``<br />``s.
+Converts newlines into ``<p>`` and ``<br />`` tags.
 
 linebreaksbr
 ~~~~~~~~~~~~
 
-Converts newlines into ``<br />``s.
+Converts newlines into ``<br />`` tags.
 
 linenumbers
 ~~~~~~~~~~~