Replace long-tests with advanced-build-options

Author: A Wokaty

_bookdown.yml

@@ -39,7 +39,7 @@ rmd_files: ["index.Rmd",
            "volunteer-to-review.Rmd",
            "appendix.Rmd",
            "devel-branch.Rmd",
-           "long-tests.Rmd",
+           "advanced-build-options.Rmd",
            "web-query.Rmd",
            "c-and-fortran.Rmd",
            "mavericks.Rmd",