fix for username not equal pi

Gitea is a lightweight implementation of a Git server. Makers who are
already running a local IOTstack server may prefer to commit their work
to a local repository running on their Raspberry Pi, rather than
GitHub/GitLab/etc. Implementing Gitea under the IOTStack umbrella
inherits the existing IOTstack backup mechanisms for free.

Candidate page for the wiki at
https://www.dropbox.com/s/onqndgyamo2h74i/Gitea.md.zip?dl=1

Route filter.acl to add the option in mosquitto/mosquitto.conf of filtering wich topics can be read or writen by defined users.

Added the file where the user creates filters.
The example filters don´t affect usage in any way.

Version "2" of the docker-compose.yml cannot use "Healthcheck" instructions.  Only 2.1+ can do this.  I propose we upgrade the version to at least 3 so we can incorporate HealthCheck commands and any other new features as appropriate.  We're running the latest version of docker - the latest version of the docker-compose.yml is 3.7 - unless there's a really, really good reason to use an older format of the docker-compose.yml, can we please update it to at least 3.0, preferably 3.7?

s/restart you device/restart your device/

The url for the supervised HASSIO is changed, because the old one is resulting with error 404 and you cannot finish the installation

Added Mkdocks action and github pages intergration for the documentation.

menu.sh: Fix small typo in msg "Restart Required"

Changed each menu item to be on a separate line to make merges easier.

Update menu.sh

Adds a Gitea container to IOTstack

Updated readme with quick install instructions so people don't have to dig for it in the documentation.

Update README.md

Mosquitto changes update to security

Removed references to the Wiki (this IS the Wiki).

Fixed typo in EspruinoHub (was EspurinoHub).

Changed "sudo apt-get install git" to "sudo apt install git". My
understanding is that "apt" is considered best practice.

Changed the URL to download the repository from
"https://github.com/gcgarner/IOTstack.git" to
"https://github.com/SensorsIot/IOTstack.git".

Removed the last sentence under "Running under a virtual machine".
Graham closed and unpinned issue 29 so this seems redundant.

Changed several URLs to refer to the new documentation structure.

Added a "Networking" section below "Persistent data" to cover-off the
"first timer" problem of not realising why 127.0.0.1 won't work. It's
such a common problem that I thought it would be better to put it up
front (and thereby explain it twice) rather than expect newbies to
read the Networking page and immediately "grok" its significance.

Other tweaks such as clarifying the need to install Docker on the
first menu run, and consistent layout for the commands to start and
stop the stack. Also harmonised "IOTstack" as the spelling and added
some missing full stops.

Fixes some inconsistencies and makes other tweaks to index page

Docker version check

get current user in directoryfix.sh

line 61 fixed

update menu.sh for hassio