[ENHANCEMENT] Consistent starting/ending pages

[KoloInDaCrib]

What does this PR add?

This PR adds a system to the Generator that forces the page to be either on the front or on the back of a tab depending on what the file name of the page starts with. This idea was brought up by Kade a couple of days ago for the Miscellaneous Coding Tricks article.

Basically,

• If the page file name starts with +, it will always be a starting page
• If the page file name starts with -, it will always be an ending page

[Kade-github]

this looks good, unf it does create weird address bars like this:

but I don't know if we can fix that easily.

[KoloInDaCrib]

this looks good, unf it does create weird address bars like this:

but I don't know if we can fix that easily.

i suppose we could rename the files before they get converted to html pages somewhere in the Generator code