lowercase vx (#191)

* lowercase vx

* docs

Author: clickingbuttons

docs/source/vX.rst

@@ -4,7 +4,7 @@ vX
 ==========
 
 .. note::
-    To call vX methods, use the vX class member on RESTClient.
+    To call vX methods, use the vx class member on RESTClient.
 
     For example, :code:`financials = RESTClient().vx.list_stock_financials()`
 
@@ -16,4 +16,4 @@ List stock financials
 
 .. automethod:: polygon.rest.VXClient.list_stock_financials
 
-.. _Stocks financials vX: https://polygon.io/docs/stocks/get_vx_reference_financials
+.. _Stocks financials vX: https://polygon.io/docs/stocks/get_vx_reference_financials

polygon/rest/__init__.py

@@ -52,7 +52,7 @@ def __init__(
             base=base,
             verbose=verbose,
         )
-        self.vX = VXClient(
+        self.vx = VXClient(
             api_key=api_key,
             connect_timeout=connect_timeout,
             read_timeout=read_timeout,

test_rest/test_financials.py

@@ -22,7 +22,7 @@
 
 class FinancialsTest(BaseTest):
     def test_list_stock_financials(self):
-        financials = [f for f in self.c.vX.list_stock_financials()]
+        financials = [f for f in self.c.vx.list_stock_financials()]
         expected = [
             StockFinancial(
                 cik="0001413447",