Fix internal hyperlink in INSTALL.md ToC

Damian Rouson · web-flow · commit 8a1ac56bc97d · 2017-05-01T22:43:50.000-07:00
diff --git a/INSTALL.md b/INSTALL.md
@@ -369,6 +369,7 @@ export gcc_install_path=/desired/installation/destination
 [macOS]: #macos
 [Windows]: #windows
 [Linux]: #linux
+[FreeBSD]: #freebsd
 [Virtual machine]: #virtual-machine
 [Installation Script]: #installation-script
 
