Merge pull request #87 from py-pkgs/patch-contributing-env

Added instructions on how to create and activate conda env

{{ cookiecutter.__package_slug }}/CONTRIBUTING.md

@@ -43,21 +43,29 @@ If you are proposing a feature:
 Ready to contribute? Here's how to set up `{{ cookiecutter.__package_slug }}` for local development.
 
 1. Download a copy of `{{ cookiecutter.__package_slug }}` locally.
-2. Install `{{ cookiecutter.__package_slug }}` using `poetry`:
+
+2. Create and activate a conda environment for `{{ cookiecutter.__package_slug }}`:
+
+    ```console
+    $ conda create -n {{ cookiecutter.__package_slug }} python={{ cookiecutter.python_version }}
+    $ conda activate {{ cookiecutter.__package_slug }}
+    ```
+
+3. Install `{{ cookiecutter.__package_slug }}` using `poetry`:
 
     ```console
     $ poetry install
     ```
 
-3. Use `git` (or similar) to create a branch for local development and make your changes:
+4. Use `git` (or similar) to create a branch for local development and make your changes:
 
     ```console
     $ git checkout -b name-of-your-bugfix-or-feature
     ```
 
-4. When you're done making changes, check that your changes conform to any code formatting requirements and pass any tests.
+5. When you're done making changes, check that your changes conform to any code formatting requirements and pass any tests.
 
-5. Commit your changes and open a pull request.
+6. Commit your changes and open a pull request.
 
 ## Pull Request Guidelines