[WIKI] Add visual images of what the app looks like for user guide

[emipeanz]

Description
This is small and should probably be done towards the end of the project, but we should add images in the user guide section of the wiki and readme to actually give images of what the app looks like. ie. in the Opening / Cloning Repositories wiki page, put a screen shot of what the menu looks like for this part of the app.

Acceptance criteria
Images up for

• Screenshot of opening repo page
• Screenshot of changes page with changed files and git graph
• Screenshots of all types of menus that can be used to push and pull for Pushing and Pulling from Remote page

[nathan-cairns]

Seems like a nice thing :) . Approved. Maybe a very small though?

[emipeanz]

Seems like a nice thing :) . Approved. Maybe a very small though?

Point taken 👍

[joel-clarke]

Sounds good, approved.

[rmberriman]

Approved - agreed with Nathan !