git: 05e2e803ebe8 - main - CONTRIBUTING.md: correct developer certificate of origin link markup

The branch main has been updated by emaste:

URL: https://cgit.FreeBSD.org/src/commit/?id=05e2e803ebe8e791754bae6333e70e096bde47e7

commit 05e2e803ebe8e791754bae6333e70e096bde47e7
Author:     Ed Maste <emaste@FreeBSD.org>
AuthorDate: 2023-02-28 02:34:49 +0000
Commit:     Ed Maste <emaste@FreeBSD.org>
CommitDate: 2023-02-28 02:36:29 +0000

    CONTRIBUTING.md: correct developer certificate of origin link markup
    
    Sponsored by:   The FreeBSD Foundation
---
 CONTRIBUTING.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index f5ae3e8fccc9..ad221be66afc 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -27,7 +27,7 @@ A pull request will be considered if:
 * All commits have your name and valid email address as you would like to see them in the FreeBSD repository as the author. Fake github.com addresses cannot be used.
 * The scope of the pull request should not change during review. If the review suggests changes that expand the scope, please create an independent pull request.
 * Fixup commits should be squashed with the commit they are fixing. Each commit in your branch should be suitable for FreeBSD's repository.
-* Commits should include one or more `Signed-off-by:` lines with full name and email address certifying https://developercertificate.org/[Developer Certificate of Origin].
+* Commits should include one or more `Signed-off-by:` lines with full name and email address certifying [Developer Certificate of Origin](https://developercertificate.org/).
 * The commits follow FreeBSD's style guide. See [Style](#Style).
 * The commits should not introduce trailing white space.
 * If the commmit fixes a bug, please add 'PR: <bugnumber>' to the comment message.