add: css and button to home page

src/path.py

@@ -19,7 +19,7 @@ class Path():
     def get_dirpath(self):
         return self._dirpath
 
-    def get_site_path(self):
+    def get_url(self):
         site_path: Path = Path(sys.argv[1])
         return self._absolute_path[len(site_path._absolute_path):]