Added HA, NTP, and VDN to Table of acronyms.

Continued improvements in the Writing conventions chapter, starting from Capitalization.

Updated the Word choice chapter to include dialpad.

Changed the verbiage of the GUI elements, prepositions, and other usage guidelines topic.

Working on improvements in the Writing conventions chapter. Updates for the next iteration will start from Capitalization. The earlier sections have been updated in this iteration.

Added a new word choice section: interface.

Updated the following word choice sections: assume and turn on or off, shut down, restart.

Added more information about alt text in the Screenshot usage chapter.