More fixes

Author: josevalim

lib/elixir/pages/mix-and-otp/docs-tests-and-with.md

@@ -165,7 +165,7 @@ iex> KV.Command.parse("GET shopping\r\n")
 
 As the name says, doctest is documentation first and a test later. Their goal is not to replace tests but to provide up-to-date documentation. You can read more about doctests in the `ExUnit.DocTest` documentation.
 
-## `with`
+## Using `with`
 
 As we are now able to parse commands, we can finally start implementing the logic that runs the commands. Let's add a stub definition for this function for now:
 

lib/elixir/pages/mix-and-otp/dynamic-supervisor.md

@@ -221,7 +221,7 @@ In the Applications tab, you will see all applications currently running in your
 Not only that, as you create new buckets on the terminal, you should see new processes spawned in the supervision tree shown in Observer:
 
 ```elixir
-iex> KV.locate("shopping")
+iex> KV.lookup_bucket("shopping")
 #PID<0.89.0>
 ```