Update 'PYGUIDE.md'

PYGUIDE.md

@@ -95,15 +95,6 @@ always access your variable throught the method and avoid to access directly.
 
 ``` 
 
-Attributes with known units should be explicit in method's names
-
-```python
-
-  @property
-  def distance_m(self):    
-    return self._distance    
-``` 
-
 ### Coments
 
 #### code documentation 
@@ -137,6 +128,19 @@ all public classes, properties and methods must have code comments
 
 ``` 
 
+Attributes with known units should be explicit in method's comment
+
+```python
+
+  @property
+  def distance(self):    
+    """
+    My class distance in meters
+    :return: float
+    """
+    return self._distance    
+``` 
+
 #### To do's
 
 Pending to implement operations should be indicated with ToDo comments to highlight the missing operation