Update story table

[junedev]

• Update stories/concepts table as there were some new additions
• Remove deprecated exercises from the list as they were usually very old/unfinished and not adding value
• Add a note at the top that the table is generated with link to the script (some people did not know it does not have to be edited by hand)

(GitHub does not allow me to paste the table in the PR description for easier review anymore because it is too long.)