Chore: add 2020 note data

[seanpm2001]

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Chore: add 2020 note data

This is a personal chore for myself, I won't need public help.

I plan on making the /Git-Templates/GitHub/Notes/ directory more of an archive by including 2020 data in its full extent, obsoleting the Seanpm2001/Notes/ directory.

Some side info

I previously commented on Ruffle-RS to not consider things a chore. I was too supportive back then and ignored certain logic. Not all chores are bad, and I don't feel like I didn't do any harm to the ruffle community, looking back, the comment wasn't bad. Here is a link to the thread: 4

In other words, I didn't fully understand the usage of the term.

Edit1: fixed link, added edit1 section

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