Change Open Earable button link in README (#115)

Updated button link for Open Earable.

Author: TobiasRoeddiger

README.md

@@ -11,7 +11,7 @@ This Dart package provides functionality for interacting with OpenEarable device
 
 
 
-[![Button](https://raw.githubusercontent.com/OpenEarable/open_earable_flutter/main/.github/assets/get_oe_button.svg)](https://forms.gle/R3LMcqtyKwVH7PZB9)
+[![Button](https://raw.githubusercontent.com/OpenEarable/open_earable_flutter/main/.github/assets/get_oe_button.svg)](https://openearable.com)
 
 [![Button](https://raw.githubusercontent.com/OpenEarable/open_earable_flutter/main/.github/assets/show_on_pub_dev_button.svg)](https://pub.dev/packages/open_earable_flutter)
 
@@ -115,4 +115,4 @@ To get started with the OpenEarable Flutter package, follow these steps:
   > Checking for capabilities using `is <Capability>` is deprecated. Please use `hasCapability<T>()` instead. You can learn more about capabilities in the [Capabilities](doc/CAPABILITIES.md) documentation.
 
 ## Add custom Wearable Support
-Learn more about how to add support for your own wearable devices in the [Adding Custom Wearable Support](doc/ADD_CUSTOM_WEARABLE.md) documentation.
+Learn more about how to add support for your own wearable devices in the [Adding Custom Wearable Support](doc/ADD_CUSTOM_WEARABLE.md) documentation.