Fix up validators docs

docs/api-guide/validators.md

@@ -8,7 +8,7 @@
 
 Most of the time you're dealing with validation in REST framework you'll simply be relying on the default field validation, or writing explicit validation methods on serializer or field classes.
 
-Sometimes you'll want to place your validation logic into reusable components, so that it can easily be reused throughout your codebase. This can be achieved by using validator functions and validator classes.
+However, sometimes you'll want to place your validation logic into reusable components, so that it can easily be reused throughout your codebase. This can be achieved by using validator functions and validator classes.
 
 ## Validation in REST framework
 

docs/index.md

@@ -173,7 +173,7 @@ The API guide is your complete reference manual to all the functionality provide
 * [Serializers][serializers]
 * [Serializer fields][fields]
 * [Serializer relations][relations]
-* [Validation][validation]
+* [Validators][validators]
 * [Authentication][authentication]
 * [Permissions][permissions]
 * [Throttling][throttling]

docs/template.html

@@ -95,7 +95,7 @@ a.fusion-poweredby {
                   <li><a href="{{ base_url }}/api-guide/serializers{{ suffix }}">Serializers</a></li>
                   <li><a href="{{ base_url }}/api-guide/fields{{ suffix }}">Serializer fields</a></li>
                   <li><a href="{{ base_url }}/api-guide/relations{{ suffix }}">Serializer relations</a></li>
-                  <li><a href="{{ base_url }}/api-guide/validation{{ suffix }}">Validation</a></li>
+                  <li><a href="{{ base_url }}/api-guide/validators{{ suffix }}">Validators</a></li>
                   <li><a href="{{ base_url }}/api-guide/authentication{{ suffix }}">Authentication</a></li>
                   <li><a href="{{ base_url }}/api-guide/permissions{{ suffix }}">Permissions</a></li>
                   <li><a href="{{ base_url }}/api-guide/throttling{{ suffix }}">Throttling</a></li>

mkdocs.py

@@ -59,7 +59,7 @@ path_list = [
     'api-guide/serializers.md',
     'api-guide/fields.md',
     'api-guide/relations.md',
-    'api-guide/validation.md',
+    'api-guide/validators.md',
     'api-guide/authentication.md',
     'api-guide/permissions.md',
     'api-guide/throttling.md',