rename TROUBLESHOOT.md (Azure#27068)

Author: billwert

sdk/identity/azure-identity/README.md

@@ -479,7 +479,7 @@ describes why authentication failed. When this exception is raised by `ChainedTo
 When credentials cannot execute authentication due to one of the underlying resources required by the credential being unavailable on the machine, the`CredentialUnavailableException` is raised and it has a `message` attribute which
 describes why the credential is unavailable for authentication execution . When this exception is raised by `ChainedTokenCredential`, the message collects error messages from each credential in the chain.
 
-See the [troubleshooting guide](https://github.com/Azure/azure-sdk-for-java/blob/main/sdk/identity/azure-identity/TROUBLESHOOT.md) for details on how to diagnose various failure scenarios.
+See the [troubleshooting guide](https://github.com/Azure/azure-sdk-for-java/blob/main/sdk/identity/azure-identity/TROUBLESHOOTING.md) for details on how to diagnose various failure scenarios.
 ### Enable client logging
 
 Azure SDK for Java offers a consistent logging story to help aid in troubleshooting application errors and expedite