Chapter 1

Some corrections.
Corrections
Typo
Typos
Typo
Typo
Typos
Line break
Merge branch '2.11' into 3.0
Typos
Typo
Merge branch '3.0' into 3.1
Update chapter 2 with the "drag and drop" action
Translated latest changes to german
Added additional example for iflng tags
Merge branch '2.11' into 3.0
Merge branch '3.0' into 3.1
Merge branch '3.1' into 3.1-ja.
Catch up to 9e929da3750d8053c3e6e8751756bd252977c061.
Fix typo.