Add data file with items for "Go Further" section

_data/go_further.yml

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+- title: "Go Further: Concurrency"
+  description: "Swift has concurrency features built into the language making it easier to write concurrent code with the assistance of the compiler. This video introduces the async/await mechanism, a key part of Swift Concurrency."
+  content-type: video
+  content-url: https://developer.apple.com/videos/play/wwdc2021/10132/
+  thumbnail-url: #TBD
+  release-date: 2021-06-08
+- title: "Go Further: Swift Generics"
+  description: "In Swift, generics are a fundamental way to write abstract code. This video walks through the basics of Swift Generics and introducing generics into your code."
+  content-type: video
+  content-url: https://developer.apple.com/videos/play/wwdc2021/10132/
+  thumbnail-url: #TBD
+  release-date: 2021-06-09
+- title: "Go Further: Regular Expressions"
+  description: "Swift provides first-class regular expression support, commonly known as regex, for effective string processing. This video gives an overview of the power and flexibility of Swift Regex."
+  content-type: video
+  content-url: https://developer.apple.com/videos/play/wwdc2022/110357/
+  thumbnail-url: #TBD
+  release-date: 2022-06-07
+- title: "Go Further: Swift Strings Under The Hood"
+  description: "Swift strings provide a fast, Unicode-compliant way to work with text. In most cases"
+  content-type: article
+  content-url: https://www.swift.org/blog/utf8-string/
+  thumbnail-url: #TBD
+  release-date: 2019-03-20