Update docs/source/dev/hwobj_signals.md

Co-authored-by: fabcor <[email protected]>

docs/source/dev/hwobj_signals.md

@@ -45,7 +45,7 @@ self.emit('my_signal', new_value)
 
 _BaseHardwareObject_ implements the following ```connect```method, built around the homonymous method of _PyDispatcher_. Making it more convenient to use. The functions provides syntactic sugar ; Instead of ```self.connect(self, "signal", slot)``` it is possible to do ```self.connect("signal", slot)```
 
-From the [BaseHardwareObject](https://github.com/mxcube/mxcubecore/blob/develop/mxcubecore/BaseHardwareObjects.py#L878) class (removing extra lines for brevity):
+From the {py:meth}`HardwareObjectMixin.connect` method (removing extra lines for brevity):
 
 ```
     def connect(