Give visibility to certain solutions provided via closed issues of this repo

[jgvictores]

• How can I program... by demonstration? #28 (How can I program... by demonstration) could go in https://github.com/roboticslab-uc3m/teo-software-manual but maybe deserves a more generic software manual or tutorials repo.
• More outliers could be How to resolve strange characters in yarp #27 but that could actually go upstream to yarp. Note to self: I believe I still have access to the YARP wiki, and there was a "YARP tricks" page. :-)
• ...?

[jgvictores]

PS: Related with discarded idea #10.

[jgvictores]

Progress will now be tracked at roboticslab-uc3m/developer-manual#23.