Re-organisation Documentation and Getting started (#2055)

* Split MQTT documentation

* Add more details

* Move content to /docs

* Enable sidebar

* Move content to /docs

* Enable sidebar

* Move content

* Update links

* Remove wizard stuff

* Enable sidebar

* Minor changes

* Move MQTT parts to /docs

* update links

* Update links and sync content

* Fix link

* Enable sidebar

* Remove navigation

* Remove navigation and other minor updates

* Update links

* Add overview page

* Make title linkable

* Update

* Plit content

* Update links

* Rearrange content

* New getting-started section

* Add icons for docs

* Update for new structure

* Update for new structure

* Add docs navigation

* Add docs overview page

* Remove ecosystem navigation

* Add docs and remove other collections

* Move ecosystem to docs

* Remove duplicate files

* Re-add ecosystem overview

* Move to ecosystem

* Fix permission

* Update navigation

* Remove collection

* Move overview to right folder

* Move mqtt to upper level

* Move notebook to ecosystem

* Remove un-used files

* Add one more rectangle for iOS

* Move two parts back from docs and rename Run step

* Remove colon

* update getting-started section

* Add redirect

* Update

* Update navigation

source/getting-started/index.markdown

@@ -12,13 +12,13 @@ footer: true
 You will need to install Home Assistant before we can get started. You can install Home Assistant on your computer or you can turn a Raspberry Pi into a dedicated Home Assistant hub.
 
 <div class="text-center hass-option-cards" markdown="0">
-  <a class='option-card' href='/getting-started/hassbian-installation/'>
+  <a class='option-card' href='/docs/hassbian/installation/'>
     <div class='img-container'>
       <img src='/images/supported_brands/raspberry-pi.png' />
     </div>
     <div class='title'>Install Hassbian on your Raspberry Pi 3</div>
   </a>
-  <a class='option-card' href='/getting-started/installation-python/'>
+  <a class='option-card' href='/docs/installation/python/'>
     <div class='img-container'>
       <img src='/images/supported_brands/python.svg' />
     </div>
@@ -26,16 +26,8 @@ You will need to install Home Assistant before we can get started. You can insta
   </a>
 </div>
 
-### {% linkable_title Alternative methods %}
+For alternative installation methods please take a look at the [installation documentation](/docs/installation/).
 
-For advanced users we have several alternative guides for installing Home Assistant.
+If you run into any issues, please see [the troubleshooting page](/docs/installation/troubleshooting/) or [communication channels](/help/). It contains solutions to many commonly encountered issues.
 
-- [Docker](/getting-started/installation-docker/)
-- [Manual Raspberry Pi installation](/getting-started/installation-raspberry-pi/) (requires existing Raspbian installation)
-- [Raspberry Pi All-In-One Installer Script](/getting-started/installation-raspberry-pi-all-in-one/) (requires existing Raspbian installation)
-- [Vagrant](/getting-started/installation-vagrant/)
-- [Synology NAS](/getting-started/installation-synology/)
-- [Virtualenv Linux](/getting-started/installation-virtualenv/)
-
-[rpi]: /getting-started/installation-raspberry-pi-image/
-[python]: /getting-started/installation-python/
+### [Next step: Configuring Home Assistant &raquo;](/getting-started/configuration/)