Bazel: update link to Bazel's homepage.
Bazel: update link to Bazel's homepage.

Change-Id: Ic4b1fd074bba967b9ae9d73ad4a7238dbb5d5c4f
Signed-off-by: Piotr Sikora <ba6f3a1a6d7e1ecae91b31e93969cc392fbd0fdd@google.com>
Reviewed-on: https://nginx-review.googlesource.com/2600
Reviewed-by: Gurgen Hrachyan <50162806b3b8928bb34df830cfc0ce042562ff4e@google.com>

firebase/nginx,firebase/nginx,firebase/nginx,firebase/nginx