* Rename file

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Convert to Markdown

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Add discord badge

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Fix links

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

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Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>