Fifth DAMON merge anniversary

[SJ Park]

Five years ago today, DAMON was merged [1] into the mainline.  The last five
years were so grateful and incredible time to me.  I earned many lessons and
friends, much more than I expected.  It was all owing to the great DAMON
community.  According to my humble script [2], 143 people contributed 1,427
commits and 49,123 lines of changes to DAMON in the last five years.

    $ ./lazybox/version_control/authors.py ./linux --since v5.14 \
            --linux_subsystems DAMON --skip_merge_commits --total_only
    # 143 authors, 1427 commits in total
    $ ./lazybox/version_control/authors.py ./linux --since v5.14 \
            --linux_subsystems DAMON --sortby lines --skip_merge_commits \
            --total_only
    # 143 authors, 49123 lines in total

Huge thanks to all the contributions.  Hopefully DAMON didn't only take but
also gave some fun and wins to people.  I will also try to give back more to
the community.  I'm looking forward to the next five years.

[1] https://git.kernel.org/torvalds/c/2224d8485492
[2] https://github.com/sjp38/lazybox/blob/master/version_control/authors.py


Thanks,
SJ