Merge pull request #5 from hreikin/devel

Merge pull request #4 from hreikin/master
Create how-to-backup.txt
Create how-to-create-sd.txt
Rename how-to-backup.txt to how-to-backup.md
Update how-to-backup.md
Update and rename how-to-create-sd.txt to how-to-create-sd.md
Update how-to-create-sd.md
Merge pull request #6 from hreikin/master

merge master/devel branches