Update pull_request_template.md

.github/pull_request_template.md

@@ -21,4 +21,5 @@ Please delete options that are not relevant.
 - [ ] I have added tests that prove my fix is effective or that my feature works
 - [ ] New and existing unit tests pass locally with my changes
 - [ ] The Read the Docs documentation is compiling correctly
-- [ ] I have added new features to the [doc/whatsnew.rst](https://github.com/openego/eDisGo/blob/dev/doc/whatsnew.rst)
+- [ ] If new packages are needed, I added them the [setup.py](https://github.com/openego/eDisGo/blob/dev/setup.py), and if needed the [rtd_requirements.txt](https://github.com/openego/eDisGo/blob/dev/rtd_requirements.txt), the [eDisGo_env.yml](https://github.com/openego/eDisGo/blob/dev/eDisGo_env.yml) and the [eDisGo_env_dev.yml](https://github.com/openego/eDisGo/blob/dev/eDisGo_env_dev.yml).
+- [ ] I have added new features to the corresponding [whatsnew](https://github.com/openego/eDisGo/blob/dev/doc/whatsnew.rst](https://github.com/openego/eDisGo/tree/dev/doc/whatsnew) file