Added a "Talks and video tutorials" section

[Hultner]

Added my "Python pydantic Introduction – Give your data classes super powers" talk YouTube video based on the talk for Python Pizza.

@samuelcolvin Were you thinking like this?

Change Summary

Added a section for talks and videos, added my Pydantic introduction talk to the list.

Related issue number

N/A, discussed with @samuelcolvin on gitter.

Checklist

• [N/A] Unit tests for the changes exist
• [N/A] Tests pass on CI and coverage remains at 100%
• Documentation reflects the changes where applicable
• changes/<pull request or issue id>-<github username>.md file added describing change
  (see changes/README.md for details)

[codecov]

Codecov Report

Merging #1499 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master     #1499   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           21        21           
  Lines         3761      3772   +11     
  Branches       748       749    +1     
=========================================
+ Hits          3761      3772   +11     

Impacted Files	Coverage Δ
pydantic/utils.py	100.00% <0.00%> (ø)
pydantic/networks.py	100.00% <0.00%> (ø)

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[samuelcolvin]

Thanks so much.

Please could you move this section down to be part of "Testimonials" and perhaps rename that section to "Discussion of Pydantic" or something else suitable general.

[Hultner]

Thanks so much.

Please could you move this section down to be part of "Testimonials" and perhaps rename that section to "Discussion of Pydantic" or something else suitable general.

Yes, I've done so now 👍

I also heard your interview at Podcast.init. It was very interesting to hear, great work!