- Get the indexes of the change
- Detect the changed clause
- Correct generation of the MD with changes marks

- the complete ToC clause is analysed (between clause marks)
- figura caption regexp to catch figure caption in any part of the line

Fix: protect branch after generation of CR and only during creation of MR. Different procedure for already opened MR (in case of revised contributions)

Added -contents / -c CLA. Printing the link to the "Contents" section is now not added by default, but can be enabled