Create troubleshooting file

README.md

@@ -78,6 +78,10 @@ Quick links:
 - [Sign the CLA to Create a Pull Request](https://github.com/sendgrid/python-http-client/blob/master/CONTRIBUTING.md#cla)
 - [Improvements to the Codebase](https://github.com/sendgrid/python-http-client/blob/master/CONTRIBUTING.mdimprovements_to_the_codebase)
 
+# Troubleshooting
+
+Please see our [troubleshooting guide](https://github.com/sendgrid/python-http-client/blob/master/TROUBLESHOOTING.md) for any issues.
+
 # Thanks
 
 We were inspired by the work done on [birdy](https://github.com/inueni/birdy) and [universalclient](https://github.com/dgreisen/universalclient).

TROUBLESHOOTING.md

@@ -0,0 +1,14 @@
+
+## Table of Contents
+* [Viewing the Response Body](#response-body)
+
+<a name="response-body"></a>
+## Viewing the Response Body
+
+When debugging or testing, it may be useful to examine the raw request body.
+
+You can do this just after call `response = client.your.api._(param).call.<METHOD>` Where <METHOD> can be `get()`, `post()`, `patch()` and `post()`.
+
+```python
+print(response.body)
+```