[PATCH v1 17/18] website: docs: build: fix link syntax.

[Denis 'GNUtoo' Carikli]

For some reasons I used MediaWiki syntax for that link instead of the
CommonMark syntax.

The broken link was introduced by the commit
88d3ad4765c21383cb945608a67f6253d412acb5 ("site: fix the GNU Boot
build instructions.").

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
---
 website/pages/docs/build/index.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/website/pages/docs/build/index.md 
b/website/pages/docs/build/index.md
index 0fa7aae..1954569 100644
--- a/website/pages/docs/build/index.md
+++ b/website/pages/docs/build/index.md
@@ -6,8 +6,8 @@ This guide documents how to compile GNU Boot binaries from the
 available source code.
 
 At the time of writing users wanting to build binaries need to
-download the [https://git.savannah.gnu.org/cgit/gnuboot.git/ GNU Boot
-source code] with git.
+download the [GNU Boot source
+code](https://git.savannah.gnu.org/cgit/gnuboot.git/) with git.
 
 Supported distributions for building GNU Boot binaries:
 =======================================================
-- 
2.46.0