Update README.md

Note about HTTP

README.md

@@ -302,3 +302,5 @@ The `id` attribute values are taken from the same names used in [`strings.xml`](
 6. Parameters to tap menu items cannot have their parameter usage verified. If you get this wrong and crash the application, that's your fault not the application's. In this case, start by removing the parameters for the menu item causing the crash, and add them back one at a time until you find your fault. **Please don't give the application a poor review for your bad parameter definition!**
 
 7. We are unable to support Edge 540 and Edge 840 devices at this time. The simulation of both these devices has two unexpected errors when toggling or executing taps. We get both `Communications.NETWORK_RESPONSE_OUT_OF_MEMORY` and `Communications.BLE_QUEUE_FULL` even though the memory usage is about 6% of the available RAM. We would appreciate any leads others may have on how to solve this issue.
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+8. We are unable to support HTTP without HTTPS. This is a limitation placed upon us by the Connect IQ API which for security reasons refuses to work with HTTP requests. There is nothing developers can do about this limitation. You will have to put an HTTP proxy in front of your local Home Assistant to work with this application. See the [Trouble Shooting](TroubleShooting.md#do-it-yourself-setup) guide for an example setup.  We would appreciate it if users did not leave poor reviews for the lack of this feature which is beyond our control to fix.