Move transcripts to learn (#223)

* Move transcripts to learn

* Remove youtube_page shortcode

* update theme

* Update shortcode call

* Update theme

* Remove unneeded draft field

* Remove cruft

Author: jarrodmillman

assets/js/youtube_page.js

@@ -1,6 +1,5 @@
 ---
 title: "About"
-draft: false
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 With an extensive and high-quality ecosystem of libraries, scientific Python

content/about/_index.md

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 title: "Governance and Decision Making"
-draft: false
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 # Abstract

content/about/governance.md

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 title: "Code of Conduct"
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 This code of conduct applies to all spaces managed by the scientific Python

content/code_of_conduct.md

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 title: "Community"
-draft: false
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 Healthy communities are built when everyone's voice is heard,
@@ -17,16 +16,3 @@ Community members must adhere to our [code of conduct]({{< relref "/code_of_cond
 - [Diversity & Inclusion in Scientific Computing (DISC) group](https://numfocus.org/programs/diversity-inclusion)
 - [Advancing an inclusive culture in the scientific Python ecosystem]({{< relref "/inclusive_culture" >}})
 
-## How to contribute
-
-The scientific Python ecosystem welcomes your expertise and enthusiasm!
-
-{{< youtube_page page="why-contribute" levelOffset=3 >}}
-
-{{< youtube_page page="ways-to-contribute" levelOffset=3 >}}
-
-{{< youtube_page page="getting-started" levelOffset=3 >}}
-
-{{< youtube_page page="choosing-a-project" levelOffset=3 >}}
-
-{{< youtube_page page="first-contribution" levelOffset=3 >}}