misc: changed two docstrings' formatting

pyzipline/zipline.py

@@ -408,7 +408,8 @@ class ZiplineApi:
             ValueError: Raised if amount is less than 1
 
         Returns:
-            Stats: Statistics about the Zipline instance"""
+            Stats: Statistics about the Zipline instance
+        """
         if amount < 1:
             raise ValueError('amount must be greater than 0')
         if force_update:
@@ -440,7 +441,8 @@ class ZiplineApi:
             PyZiplineError: Raised if the API changes, causing a breaking change in this method
 
         Returns:
-            Version: The version of the Zipline instance"""
+            Version: The version of the Zipline instance
+        """
         result = self._rest_adapter.get(endpoint="version")
         if result.status_code == 200:
             return Version(**result.data)