Pouya Vedadiyan

Results 3 issues of Pouya Vedadiyan

I changed `ToCamel` to `ToPascal` and `ToLowerCamel` to `ToCamel` for better readability, because I think these terms make more sense (and are better understood by the majority of people).

This is a bit confusing. I was actually reading [camel_test.go](https://github.com/iancoleman/strcase/blob/master/camel_test.go) and in the beginning I was thinking maybe there's a mistake (a typo) in the source code but later on...

There's been some incorrect instructions (generally typos) in the markdown files.