no GSoC 2021 and fix broken links

Author: TimidRobot

content/internships/applicant-guide/contents.lr

@@ -23,7 +23,7 @@ Here are some resources:
 - [Outreachy applicant guide][outreachyguide]
 
 [gsocguide]: https://google.github.io/gsocguides/student/
-[gsodguide]: https://developers.google.com/season-of-docs/docs/tech-writer-guid
+[gsodguide]: https://developers.google.com/season-of-docs/docs/tech-writer-guide
 [outreachyguide]: https://www.outreachy.org/docs/applicant/
 
 

content/internships/contents.lr

@@ -18,13 +18,12 @@ Creative Commons is not participating in the 2021 round of Google Season of
 Docs.
 
 - [Program website](https://developers.google.com/season-of-docs/)
-- [CC's GSoD participants](https://developers.google.com/season-of-docs/docs/participants)
 
 
 ### Google Summer of Code (GSoC)
 
-
-***Organization application in progress.***
+Creative Commons is not participating in the 2021 round of Google Summer of
+Code.
 
 - [Program website](https://summerofcode.withgoogle.com/)
 

content/internships/history/contents.lr

@@ -26,7 +26,7 @@ first time in 2020.
 
 CC has participated in Google Summer of Code (GSoC) nine times since 2006:
 
-- *[All GSoC Open Source Blog posts]((/blog/categories/gsoc/)*
+- *[All GSoC Open Source Blog posts](/blog/categories/gsoc/)*
 - [Google Summer of Code 2020](https://summerofcode.withgoogle.com/archive/2020/organizations/5450793232105472/)
   - [Open Source Blog posts](/blog/categories/gsoc-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/)