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/index.md

@@ -0,0 +1,18 @@
+---
+hide:
+  - navigation
+  - toc
+title: Welcome
+---
+
+![](img/klipper-logo.png){ .center-image }
+
+Klipper is a 3d-Printer firmware. It combines the power of a general
+purpose computer with one or more micro-controllers. See the
+[features](Features.md) document for more information on why you
+should use Klipper.
+
+To begin using Klipper start by [installing](Installation.md) it.
+
+Klipper is Free Software. Read the [documentation](Overview.md) or
+view [the Klipper code on github](https://github.com/KevinOConnor/klipper).