fix links

Author: stefan-jansen

01_machine_learning_for_trading/README.md

@@ -301,7 +301,7 @@ Trading takes place in a competitive, interactive marketplace. Reinforcement lea
 
 ### Python Libraries
 
-- matplotlib [docs]( <https://github.com/matplotlib/matplotlib)
+- matplotlib [docs](https://github.com/matplotlib/matplotlib)
 - numpy [docs](https://github.com/numpy/numpy)
 - pandas [docs](https://github.com/pydata/pandas)
 - scipy [docs](https://github.com/scipy/scipy)

02_market_and_fundamental_data/01_NASDAQ_TotalView-ITCH_Order_Book/01_parse_itch_order_flow_messages.ipynb

@@ -359,7 +359,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "The ITCH tick data comes in binary format. Python provides the `struct` module (see [docs])(https://docs.python.org/3/library/struct.html) to parse binary data using format strings that identify the message elements by indicating length and type of the various components of the byte string as laid out in the specification."
+    "The ITCH tick data comes in binary format. Python provides the `struct` module (see [docs](https://docs.python.org/3/library/struct.html)) to parse binary data using format strings that identify the message elements by indicating length and type of the various components of the byte string as laid out in the specification."
    ]
   },
   {