Preferred directory/package structure and naming when contributing solutions?

[0xf0cd]

Can you perhaps update the README with some guidelines on contributing so we avoid all the merge conflicts?
e.g. should we append our usernames to packages for specific problems like this:

package sessionX.G_Exercises.ProblemY_USERNAME;

or would it be better to group all our solutions for a specific session in packages like this?

package sessionX.Exercises.USERNAME.ProblemY;

[andresmasegosa]

Done!. Thanks for the comment.