Minor typo & grammer corrections

Hi,

Firstly thanks for the module!

I noticed some minor problems with typos and grammer when adding/editing a profile. A list of the changes are below (changes in italics).

Search Plugins (node/content plugin settings)
In order to see unpublished nodes, the user most also have permissions to do so.
In order to see unpublished nodes, the user must also have permissions to do so.

Insert methods
These will work without the need for a input filter, but might fail after moving a site, or on multilingual sites.
These will work without the need for an input filter, but might fail after moving a site, or on multilingual sites.

The paths will be runned thru the url() function.
The paths will be run through the url() function.

Attributes
Attributes is HTML attributes that will be attached to the insert plugin.
Attributes are HTML attributes that will be attached to the insert plugin.

Autocomplete options
Linkit uses Better Autocomplete which may be configured with focus on performance
Linkit uses Better Autocomplete which may be configured with a focus on performance