rn-5: fix spurious parenthesis

Author: chriscool

rev_news/drafts/edition-5.md

@@ -89,7 +89,7 @@ __Various__
 
 * As part of a school project, Antoine DELAITE, Remi GALAN ALFONSO, Remi LESPINET, Guillaume PAGES and Louis-Alexandre STUBER, from [Ensimag](http://ensimag.grenoble-inp.fr/), contributed to Git. As a warm-up, they implemented a `am.threeWay` configuration variable to have `git am` use `-3` by default (will be in Git 2.5). Some patch series are being polished to allow `git bisect` to use an arbitrary pair of terms instead of `good` and `bad`, an improved management of list of addresses and aliases in the `--to`, `--cc` and `--bcc` options of `git send-email`, a more verbose output for `git status` when ran during a `rebase -i` session, and a safety feature for `git rebase` to avoid dropping lines by mistake in the todo-list.
 
-* Both of the Git project [Google Summer of Code]((http://www.google-melange.com/gsoc/document/show/gsoc_program/google/gsoc2015/about_page)
+* Both of the Git project [Google Summer of Code](http://www.google-melange.com/gsoc/document/show/gsoc_program/google/gsoc2015/about_page)
 students, Paul Tan and Karthik Nayak have passed the midterm evaluation and are doing well. Karthik is working on
 [unifying the implementations of `git branch -l`, `git tag -l`, and `git for-each-ref`](https://github.com/KarthikNayak/git/commits/ref_filter)
 and Paul is working on [porting git-pull from shell to C](https://github.com/pyokagan/git/commits/pt/builtin-pull)