Incorrect link to repository - the name has changed

[gibbardsteve]

github-api-package/setup.py

Line 7 in d9d1cf4

url='https://github.com/ONS-Innovation/code-github-api-package',

There are also some incorrect examples in the top-level README and mkdocs documentation.

[TotalDwarf03]

fixed in documentation PR

#14