Add steps to the setup instructions and fix details to build the docs (#5)

Author: danielhuppmann

README.md

@@ -18,8 +18,12 @@ Detailed instructions to create a new repository from a template can be found
 
 Then, make the following changes:
 
-0. Change the text of the `LICENSE` file (optional).
-0. Update the url in the license badge in this readme to point to the new repository.
+0. Change the text of the [LICENSE](LICENSE) file (optional).
+   Visit [choosealicense.com](https://choosealicense.com) to find out which license is
+   right for your project.
+0. Update the copyright (if other than IIASA) in this readme.
+0. Update the url in the license badge in this readme to point to your new repository.
+   This will automatically change the license badge (if you changed the license).
 0. Rename the folder `python_stub` to the intended package name.
 0. Update the package name, author info and url in `setup.cfg`.
 0. Update the package name, author info and copyright in `doc/source/conf.py`.
@@ -35,7 +39,7 @@ A GitHub Action workflow is configured to check that your commits conform to the
 We recommend that you follow the [numpydoc](https://numpydoc.readthedocs.io)
 docstring formatting guide.
 
-Looking for more ideas to include fancy modules in your package?  
+Looking for more best-practice tools for scientific software development?
 Take a look at the [cookiecutter-hypermodern-python](https://github.com/cjolowicz/cookiecutter-hypermodern-python) repository!
 
 ## Installation
@@ -46,7 +50,7 @@ Install the package including the requirements for building the docs.
 
 ## Building the docs
 
-Navigate to the doc folder and run Sphinx.
+Run Sphinx to build the docs!
 
     make --directory=doc html