adding link to survey (#5959)

Adding a link to our design discussion survey as a badge on the README.
2024-09-05 15:47:27 -07:00 · 2024-09-05 15:47:27 -07:00 · 3433445498
--- a/README.md
+++ b/README.md
@ -1,6 +1,7 @@
 # Azure SDK for C++

 [![Build Status](https://dev.azure.com/azure-sdk/public/_apis/build/status/cpp/cpp%20-%20client%20-%20ci?branchName=main)](https://dev.azure.com/azure-sdk/public/_build/latest?definitionId=1611&branchName=main)
+<a href="https://www.surveymonkey.com/r/gh-badge"><img src="https://img.shields.io/badge/Take%20Our%20Design%20Discussion%20Survey-008000"/></a>

 This repository is for active development of the Azure SDK for C++. For consumers of the SDK we recommend visiting our [developer docs](https://azure.github.io/azure-sdk-for-cpp).