Merge pull request #34432 from yuexiao-wang/fix-cassandra

Automatic merge from submit-queue

Clean up the link in cassandra

**What this PR does / why we need it**:
Clean up the link in  README for cassandra

**Which issue this PR fixes** :
 fixes #34431


Signed-off-by: yuexiao-wang <wang.yuexiao@zte.com.cn>

examples/storage/cassandra/README.md

@@ -39,7 +39,7 @@ Documentation for other releases can be found at
 
   - [Prerequisites](#prerequisites)
   - [Cassandra Docker](#cassandra-docker)
-  - [tl;dr Quickstart](#tldr-quickstart)
+  - [Quickstart](#quickstart)
   - [Step 1: Create a Cassandra Headless Service](#step-1-create-a-cassandra-headless-service)
   - [Step 2: Use a Pet Set to create Cassandra Ring](#step-2-create-a-cassandra-petset)
   - [Step 3: Validate and Modify The Cassandra Pet Set](#step-3-validate-and-modify-the-cassandra-pet-set)
@@ -92,7 +92,7 @@ includes a standard Cassandra installation from the Apache Debian repo.  Through
 | CASSANDRA_NUM_TOKENS  | 32               |
 | CASSANDRA_RPC_ADDRESS | 0.0.0.0          |
 
-## tl;dr Quickstart
+## Quickstart
 
 If you want to jump straight to the commands we will run,
 here are the steps: