Merge pull request creativecommons#466 from creativecommons/outreachy_link_fix

Add the missing links to the Outreachy rounds

Author: kgodey

content/internships/history/contents.lr

@@ -50,10 +50,10 @@ CC has participated in Google Summer of Code seven times up to 2013, and twice s
 
 CC participated in Outreachy twice since 2019.
 
-* [Outreachy May 2020 - August 2020]
+* [Outreachy May 2020 - August 2020](https://www.outreachy.org/outreachy-may-2020-internship-round/)
     * [Open Source Blog posts](/blog/categories/outreachy-2020/)
     * [Welcome Our Interns from Google Summer of Code and Outreachy!](https://creativecommons.org/2020/05/11/welcome-interns-google-summer-of-code-and-outreachy/)
-* [Outreachy December 2019 - March 2020]
+* [Outreachy December 2019 - March 2020](https://www.outreachy.org/december-2019-to-march-2020-internship-round/)
     * [Open Source Blog posts](/blog/categories/outreachy-2019-20/)
     * [Meet Our 2020 Interns From Outreachy](https://creativecommons.org/2019/12/10/2020-outreachy-interns/)