docs : make modifications to all md files to make them compatible with mkdocs

all markdown files must have a single H1 heading at the top.

Signed-off-by: Damien Martin <damlobster@gmail.com>

Update CNAME

docs/Installation.md

@@ -1,3 +1,5 @@
+# Installation
+
 These instructions assume the software will run on a Raspberry Pi
 computer in conjunction with OctoPrint. It is recommended that a
 Raspberry Pi 2, 3, or 4 computer be used as the host machine (see the
@@ -9,8 +11,7 @@ micro-controllers,
 [ARM based micro-controllers](Features.md#step-benchmarks), and
 [Beaglebone PRU](beaglebone.md) based printers.
 
-Prepping an OS image
-====================
+## Prepping an OS image
 
 Start by installing [OctoPi](https://github.com/guysoft/OctoPi) on the
 Raspberry Pi computer. Use OctoPi v0.17.0 or later - see the
@@ -38,8 +39,7 @@ setup Klipper to run at system startup, and start the Klipper host
 software. It will require an internet connection and it may take a few
 minutes to complete.
 
-Building and flashing the micro-controller
-==========================================
+## Building and flashing the micro-controller
 
 To compile the micro-controller code, start by running these commands
 on the Raspberry Pi:
@@ -92,8 +92,7 @@ When flashing for the first time, make sure that OctoPrint is not
 connected directly to the printer (from the OctoPrint web page, under
 the "Connection" section, click "Disconnect").
 
-Configuring OctoPrint to use Klipper
-====================================
+## Configuring OctoPrint to use Klipper
 
 The OctoPrint web server needs to be configured to communicate with
 the Klipper host software. Using a web browser, login to the OctoPrint
@@ -121,8 +120,7 @@ terminal window will likely report there is an error opening the
 config file - that means OctoPrint is successfully communicating with
 Klipper. Proceed to the next section.
 
-Configuring Klipper
-===================
+## Configuring Klipper
 
 The Klipper configuration is stored in a text file on the Raspberry
 Pi. Take a look at the example config files in the
@@ -182,8 +180,7 @@ After Klipper reports that the printer is ready go on to the
 [config check document](Config_checks.md) to perform some basic checks
 on the pin definitions in the config file.
 
-Contacting the developers
-=========================
+## Contacting the developers
 
 Be sure to see the [FAQ](FAQ.md) for answers to some common questions.
 See the [contact page](Contact.md) to report a bug or to contact the