Fix twine check errors

It was rST formating which was wrong

README.rst

@@ -143,7 +143,7 @@ You can execute python input files within an IDE, in your terminal with python c
 
    python <path to .py input file>
 
-or in your terminal with the ``ramp`` command, see :ref:`Command line options` below for more information.
+or in your terminal with the ``ramp`` command, see `Command line options <cmd_option_>`_ below for more information.
 
 Spreadsheet input files
 -----------------------
@@ -158,6 +158,8 @@ need to run the ``ramp`` command with the option ``-i``:
 
 .. note:: You can input several files, separated from each others by a single blank space you can also input python files
 
+.. _cmd_option:
+
 Command line options
 --------------------
 

setup.py

@@ -7,6 +7,7 @@
     name="rampdemand",
     description="An open-source python package for building bottom-up stochastic model for generating multi-energy load profiles",
     long_description=open("README.rst", encoding="utf8").read(),
+    long_description_content_type="text/x-rst",
     author_email="[email protected]",
     url="https://github.com/RAMP-project/RAMP",
     version=__version__,