Added Getting Started Info (Issue #215)

[FabioRosado]

Logged some important links and added a quick text about customising opsdroid instance in configuration.yaml. I didn't add too much text because the user probably doesn't want to be spammed with a wall of text.

Let me know if this is okay or if you'd rather have something else logged in the console.

[coveralls]

Coverage increased (+0.04%) to 95.195% when pulling 8dc3956 on FabioRosado:master into 84206f9 on opsdroid:master.

[coveralls]

Coverage increased (+0.04%) to 95.195% when pulling 8dc3956 on FabioRosado:master into 84206f9 on opsdroid:master.

[jacobtomlinson]

This is great thanks!

I like the idea of showing this on every run, but it might be nice to allow people to hide it. Could you add an option to the config along the lines of show_welcome_message which defaults to true, but if it's set to false then it needs to be hidden.

This probably affects the place where you are logging this, as it will need to be done after the config is loaded.

[coveralls]

Coverage decreased (-1.1%) to 94.021% when pulling 1bbf4b0 on FabioRosado:master into 84206f9 on opsdroid:master.

[coveralls]

Coverage decreased (-1.1%) to 94.021% when pulling aa0ef77 on FabioRosado:master into 84206f9 on opsdroid:master.

[coveralls]

Coverage decreased (-1.1%) to 94.021% when pulling 4d9d717 on FabioRosado:master into 84206f9 on opsdroid:master.

[coveralls]

Coverage decreased (-1.1%) to 94.021% when pulling 4d9d717 on FabioRosado:master into 84206f9 on opsdroid:master.

[coveralls]

Coverage decreased (-1.1%) to 94.021% when pulling 1f73534 on FabioRosado:master into 84206f9 on opsdroid:master.

[coveralls]

Coverage decreased (-0.08%) to 95.089% when pulling 53ab307 on FabioRosado:master into 2e58b87 on opsdroid:master.

[jacobtomlinson]

Awesome work!