Dear Airflow Maintainers,

Before I tell you about my issue, let me describe my environment:

# Environment

* Version of Airflow (e.g. a release version, running your own fork, running off master -- provide a git log snippet) :
* Example code to reproduce the bug (as a code snippet in markdown)
* Screen shots of your DAG's graph and tree views:
* Stack trace if applicable:
* Operating System: (Windows Version or `$ uname -a`)
* Python Version: `$ python --version`
* (Optional) Python packages: `$ pip freeze` or `$ conda list`

Now that you know a little about me, let me tell you about the issue I am having:

# Description of Issue

* What did you expect to happen?
* What happened instead?
* Here is how you can reproduce this issue on your machine:

## Reproduction Steps

1.
2.
3.


Dear Airflow Maintainers,

Before I tell you about my issue, let me describe my environment:

### Environment

* Version of Airflow (e.g. a release version, running your own fork, running off master -- provide a git log snippet):
* Airflow components and configuration, if applicable (e.g. "Running a Scheduler with CeleryExecutor")
* Example code to reproduce the bug (as a code snippet in markdown)
* Screen shots of your DAG's graph and tree views:
* Stack trace if applicable:
* Operating System: (Windows Version or `$ uname -a`)
* Python Version: `$ python --version`
* (Optional) Python packages: `$ pip freeze` or `$ conda list`

Now that you know a little about me, let me tell you about the issue I am having:

### Description of Issue

* What did you expect to happen?
* What happened instead?
* Here is how you can reproduce this issue on your machine:

### Reproduction Steps

1.
2.
3.


Add note about airflow components to template
Add note about airflow components to template