Fix English errors in documentation

Author: schodet

docs/commands/nxt-test.rst

@@ -19,8 +19,8 @@ Synopsis
 Description
 -----------
 
-:command:`nxt-test` tests connection with a NXT brick. It allows to debug the
-NXT-Python setup.
+:command:`nxt-test` tests connection with a NXT brick. It allows one to debug
+the NXT-Python setup.
 
 The NXT brick can be connected using USB, Bluetooth or over the network.
 

docs/config.rst

@@ -4,8 +4,8 @@ Configuration files
 Description
 -----------
 
-The NXT-Python configuration files allow to define the NXT bricks you want to
-connect to, so that you do not need to give the needed argument for every
+The NXT-Python configuration files allow you to define the NXT bricks you want
+to connect to, so that you do not need to give the needed argument for every
 scripts.
 
 You can place a :file:`.nxt-python.conf` in your home directory, or in the