[Enhancement]: Update WiiU Pretendo Guide verbiage/instructions

[Blu3B3rryY0gurt]

Checked Existing

• I have checked the repository for duplicate issues.

What enhancement would you like to see?

Current wording in the Pretendo WiiU setup guide has outdated wording due to changes in application version(s) used and their associated parts of the process.

• The current "Stable" verbiage for Inkay-pretendo.wps reads as:
  The stable builds have been widely tested to ensure everything works as intended. Navigate to [Inkay's latest release](https://github.com/PretendoNetwork/Inkay/releases/latest) on GitHub and download the Inkay-pretendo.wps file from the latest release.

• There is no longer a directly-hosted wps file, but instead a zip file housing the wps. As such, wording should be updated (along w/ the screenshot) to:
  The stable builds have been widely tested to ensure everything works as intended. Navigate to [Inkay's latest release](https://github.com/PretendoNetwork/Inkay/releases/latest) on GitHub and download the **Inkay-pretendo.zip** file from the latest release.

• The "Connected to Pretendo Network" is not set to "true" nor does it show as connected as currently stated in the guide immediately after moving the files to the SD card and turning the WiiU back on. The verbiage needs to be updated from: Place your SD card back into your console and boot like normal. You should see a notification of your connection: <screenshot> You are now connected to Pretendo Network.
  To a current verbiage of: Place your SD card back into your console and boot like normal. then continue with the Press the button combo L + Down + SELECT on the Wii U GamePad to open the Aroma plugin menu. instructions.

• The verbiage surrounding the BOSS menu selection in the Aroma plugin menu/Inkay sub-directory is incorrect as well but has been reported here.

Any other details to share? (OPTIONAL)

The information surrounding how to link a Pretendo account to the console could be a bit more clear as well, especially for those who have existing Nintendo Network Accounts already on their system. Adding something along the lines of For those with preexisting Nintendo Network Accounts on their console, click the currently-logged-in user button (upper left corner) to open the Users Page and choose "Add New User", then "Link Existing Nintendo Network Account" when creating the new user. This will initiate Account Linking..