Fix typos in layout.html

There were multiple misplaced semicolons, etc.

(cherry picked from commit 95fc179c21cab802469907b2759f0e8bd1cafef1)

https://github.com/krb5/krb5/commit/7f96fbf20d04c6f14f140702f446a26369596741
Author: Tom Yu <tlyu@mit.edu>
Commit: 7f96fbf20d04c6f14f140702f446a26369596741
Branch: krb5-1.11
 doc/_templates/layout.html |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)