add description function

tiramisu_api/api.py

@@ -75,6 +75,12 @@ class TiramisuOptionOption:
         self.schema = schema
 
     def doc(self):
+        description = self.description()
+        if not description:
+            return self.name()
+        return description
+
+    def description(self):
         if self.issymlinkoption():
             schema = self.config.get_schema(self.schema['opt_path'])
         else: