Add comprehensive TROUBLESHOOTING.md file for Azure Service Bus Python SDK

sdk/servicebus/azure-servicebus/README.md

@@ -95,11 +95,11 @@ To interact with these resources, one should be familiar with the following SDK
 
 ### Thread safety
 
-We do not guarantee that the ServiceBusClient, ServiceBusSender, and ServiceBusReceiver are thread-safe or coroutine-safe. We do not recommend reusing these instances across threads or sharing them between coroutines. It is up to the running application to use these classes in a concurrency-safe manner.
+We do not guarantee that the `ServiceBusClient`, `ServiceBusSender`, and `ServiceBusReceiver` are thread-safe or coroutine-safe. We do not recommend reusing these instances across threads or sharing them between coroutines. It is up to the running application to use these classes in a concurrency-safe manner.
 
 The data model type, `ServiceBusMessageBatch` is not thread-safe or coroutine-safe. It should not be shared across threads nor used concurrently with client methods.
 
-For scenarios requiring concurrent sending from multiple threads, ensure proper thread-safety management using mechanisms like threading.Lock(). **Note:** Native async APIs should be used instead of running in a ThreadPoolExecutor, if possible.
+For scenarios requiring concurrent sending from multiple threads, ensure proper thread-safety management using mechanisms like `threading.Lock()`. **Note:** Native async APIs should be used instead of running in a `ThreadPoolExecutor`, if possible.
 ```python
 import threading
 from concurrent.futures import ThreadPoolExecutor
@@ -128,7 +128,7 @@ with client:
                 executor.submit(send_batch, i, sender)
 ```
 
-For scenarios requiring concurrent sending in asyncio applications, ensure proper coroutine-safety management using mechanisms like asyncio.Lock()
+For scenarios requiring concurrent sending in asyncio applications, ensure proper coroutine-safety management using mechanisms like `asyncio.Lock()`.
 ```python
 import asyncio
 from azure.servicebus.aio import ServiceBusClient