* Update atoz.md
Fix json section by removing json syntax highlighting. The `//` comments make it invalid and it looks weird. so i adjusted the note, tweaks the example to be valid without comments and one or two settings that were wrong and i think that will be acceptable.
* Update atoz.md
keep spaces instead of tabs
This is an A to Z guide to install wetty as a local user on Debian and easily configure critical settings in a very short period time.
It is aimed at being a copy and paste guide with notes and explanations to help understand the installation and setup.