Fixed spelling errors in docs.

docs/internals/team.txt

@@ -489,8 +489,8 @@ Daniele Procida
 
 `Curtis Maloney`_
     Curtis is a self-taught programmer from Melbourne, Australia, who eschews
-    specialisation.  Upon finding Django when it was first open sourced, he
-    realised it was possible to enjoy web development.
+    specialization.  Upon finding Django when it was first open sourced, he
+    realized it was possible to enjoy web development.
 
     He spends a lot of time helping people on the #django IRC channel, and has
     authored and released a number of `smaller django apps`_.

docs/ref/models/instances.txt

@@ -662,7 +662,7 @@ URL, you should define ``get_absolute_url()``.
 
 .. warning::
 
-    You should avoid building the URL from un-validated user input, in order to
+    You should avoid building the URL from unvalidated user input, in order to
     reduce possibilities of link or redirect poisoning::
 
         def get_absolute_url(self):

docs/spelling_wordlist

@@ -355,6 +355,7 @@ Loïc
 lorem
 lt
 lte
+Luhn
 Magee
 makemessages
 makemigrations
@@ -396,6 +397,7 @@ myapp
 myproject
 mysite
 mysql
+mysqlclient
 naïve
 namespace
 namespaced