Update app.py

Co-authored-by: Alex Oladele <dragid10@gmail.com>

Author: kjaymiller

app.py

@@ -52,6 +52,7 @@ def pre_build_site():
 app = Site()
 app.template_path = "_layouts"
 app.static_paths.add("assets")
+app.site_vars["SITE_TITLE"] = "Black Python Devs"
 app.site_vars["locales"] = ["en"]
 app.site_vars["navigation"] = navigation
 app.site_vars["DATETIME_FORMAT"] = "%d %b %Y"