update home link in lode_runner_2020.md

[peutch]

Hi,
Is there a process to identify possible broken or redirected links globally?
Regards,
Patrice

[Trilarion]

..Is there a process to identify possible broken or redirected links globally? ..

Hi Patrice, thanks for the update. Yes, there is such a process, i.e. there is a script that runs over all links, makes a http request and saves all those where the result of the answer is not success. Then I manually check them all and fix them as good as I can. I do this approximately once per year and have to fix around 5% of all links once per year. Recently I was running the script and was still fixing links (didn't yet get to lode runner).

For code see:

opensourcegames/code/maintenance_entries.py

Line 300 in 8dbe065

def check_external_links(self):