Fix README for for_app_factory()

README.md

@@ -213,7 +213,7 @@ the demo in the [examples/sample-signals](https://github.com/rycus86/prometheus_
 
 ## App Factory Pattern
 
-This library also supports the Flask [app factory pattern](http://flask.pocoo.org/docs/1.0/patterns/appfactories/). Use the `init_app` method to attach the library to one or more application objects. Note, that to use this mode, you'll need to pass in `None` for the `app` in the constructor.
+This library also supports the Flask [app factory pattern](http://flask.pocoo.org/docs/1.0/patterns/appfactories/). Use the `init_app` method to attach the library to one or more application objects. Note, that to use this mode, you'll need to use the `for_app_factory()` class method to create the `metrics` instance, or pass in `None` for the `app` in the constructor.
 
 ```python
 metrics = PrometheusMetrics.for_app_factory()

prometheus_flask_exporter/__init__.py

@@ -747,4 +747,4 @@ def _is_string(value):
             return isinstance(value, str)  # python3
 
 
-__version__ = '0.14.0'
+__version__ = '0.14.1'

setup.py

@@ -6,15 +6,15 @@
 setup(
     name='prometheus_flask_exporter',
     packages=['prometheus_flask_exporter'],
-    version='0.14.0',
+    version='0.14.1',
     description='Prometheus metrics exporter for Flask',
     long_description=long_description,
     long_description_content_type='text/markdown',
     license='MIT',
     author='Viktor Adam',
     author_email='rycus86@gmail.com',
     url='https://github.com/rycus86/prometheus_flask_exporter',
-    download_url='https://github.com/rycus86/prometheus_flask_exporter/archive/0.14.0.tar.gz',
+    download_url='https://github.com/rycus86/prometheus_flask_exporter/archive/0.14.1.tar.gz',
     keywords=['prometheus', 'flask', 'monitoring', 'exporter'],
     classifiers=[
         'Development Status :: 4 - Beta',