Remove stray 'i'

Visible on this page, for example: 

http://docs.phonegap.com/en/edge/guide_platforms_ios_plugin.md.html

I think the intend may have been to italicize, but based on the guideline "Do not combine in-line formatting such as monospace italic." from https://github.com/apache/cordova-docs/blob/master/STYLESHEET.md, and the other references in the page using monospace for similar terms, and a visual comparison, I think it's better without italics.