Added Pipfile and updated {{{cookiecutter.app_name}}/README.rst

Pipfile

+[[source]]
+url = "https://pypi.python.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+# Flask
+Flask = "==1.0.2"
+MarkupSafe = "==1.0"
+Werkzeug = "==0.14.1"
+Jinja2 = "==2.10"
+itsdangerous = "==0.24"
+click = ">=5.0"
+
+# Database
+Flask-SQLAlchemy = "==2.3.2"
+psycopg2 = "==2.7.5"
+SQLAlchemy = "==1.2.8"
+
+# Migrations
+Flask-Migrate = "==2.2.0"
+
+# Forms
+Flask-WTF = "==0.14.2"
+WTForms = "==2.2.1"
+
+# Deployment
+gunicorn = ">=19.1.1"
+
+# Webpack
+flask-webpack = "==0.1.0"
+
+# Auth
+Flask-Login = "==0.4.1"
+Flask-Bcrypt = "==0.7.1"
+
+# Caching
+Flask-Caching = ">=1.0.0"
+
+# Debug toolbar
+Flask-DebugToolbar = "==0.10.1"
+
+[dev-packages]
+# Testing
+pytest = "==3.6.1"
+WebTest = "==2.0.29"
+factory-boy = "==2.11.*"
+
+# Lint and code style
+flake8 = "==3.5.0"
+flake8-blind-except = "==0.1.1"
+flake8-debugger = "==3.1.0"
+flake8-docstrings = "==1.3.0"
+flake8-isort = "==2.5"
+flake8-quotes = "==1.0.0"
+isort = "==4.3.4"
+pep8-naming = "==0.7.0"

{{cookiecutter.app_name}}/README.rst

@@ -19,7 +19,11 @@ Run the following commands to bootstrap your environment ::
 
     git clone https://github.com/{{cookiecutter.github_username}}/{{cookiecutter.app_name}}
     cd {{cookiecutter.app_name}}
+
     pip install -r requirements/dev.txt
+    # or use Pipenv
+    pipenv install --dev
+    
     npm install
     npm start  # run the webpack dev server and flask server using concurrently