Update documentation

[SchoolyB]

1. There is no motion telling a user how to enter command mode
2. Need to add a step to the Installation section about cloning the repo first.
3. The search mode: Does search mode find each occurrence of the entered string or just the first? Will ask @CobbCoding1 about this :)
4. The config file section could use more explanation. Idk what the hell set-var indent 2 means.
5. The w in the cyntax highlighting config represents a "word" according to the docs. but does that mean anything other than a keyword or type?
   so in:

 testing_proc::proc() 
{
fmt.printfln("This is string")
}

is "This is a string" considered to be a "word"?

@CobbCoding1 I could use some insight on some of these