Fix broken bold links in RST

Author: mmore500

README.rst

@@ -49,23 +49,9 @@ Read on for details.
 Contents
 --------
 
-- |Usage|_ : `Example 1 <#example-1>`_ | `Example 2 <#example-2>`_ | `Example 3 <#example-3>`_ | `Example 4 <#example-4>`_ | `Example 5 <#example-5>`_
-- |API|_ : `teeplot.tee() <#teeplottee>`_ | `Module-Level Configuration <#module-level-configuration>`_ | `Environment Variables <#environment-variables>`_
-- |Citation|_ | |Credits|_
-
-
-.. |Usage| replace:: **Usage**
-.. _Usage: #usage
-
-.. |API| replace:: **API**
-.. _API: #api
-
-.. |Citation| replace:: **Citation**
-.. _Citation: #citation
-
-.. |Credits| replace:: **Credits**
-.. _Credits: #credits
-
+- **Usage** : `Example 1 <#example-1>`_ | `Example 2 <#example-2>`_ | `Example 3 <#example-3>`_ | `Example 4 <#example-4>`_ | `Example 5 <#example-5>`_
+- **API** : `teeplot.tee() <#teeplottee>`_ | `Module-Level Configuration <#module-level-configuration>`_ | `Environment Variables <#environment-variables>`_
+- **Citation** | |Credits|_
 
 Usage
 -----