update docstring for function activate

Author: Thinh Nguyen

elements_ephys/ephys.py

@@ -28,7 +28,8 @@ def activate(ephys_schema_name, probe_schema_name=None, *, create_schema=True,
          required dependencies to activate the `ephys` element:
             Upstream tables:
                 + Session: parent table to ProbeInsertion, typically identifying a recording session
-                + SkullReference:
+                + SkullReference: Reference table for InsertionLocation, specifying the skull reference
+                 used for probe insertion location (e.g. Bregma, Lambda)
             Functions:
                 + get_neuropixels_data_directory(probe_insertion_key: dict) -> str
                     Retrieve the recorded Neuropixels data directory for a given ProbeInsertion

elements_ephys/probe.py

@@ -8,6 +8,12 @@
 
 
 def activate(schema_name, create_schema=True, create_tables=True):
+    """
+    activate(schema_name, create_schema=True, create_tables=True)
+        :param schema_name: schema name to activate the `probe` element
+        :param create_schema: create the schema if not yet existed (default = True)
+        :param create_tables: create the tables if not yet existed (default = True)
+    """
     schema.activate(schema_name, create_schema=create_schema, create_tables=create_tables)