David De Sloovere 7f20c5ae36 Improve backup github doc (#2589)
* Improve backup github doc

Unignore .travis.yaml, which is referenced later in the document to set up CI testing on push.

* Fix extension on .travis.yml

It's .travis.yml and not .travis.yAml
2017-05-07 21:37:41 +02:00
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