* add PHP courses

* fix alphabetical order

* add author

* remove teaser course

* add instructor
Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>

* moved
Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>

* fix titles
Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>

* fix author
Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>
Co-authored-by: NEric Hellman <eric@hellman.net>
Co-authored-by: NDavid Ordás <3125580+davorpa@users.noreply.github.com>