docs: add consul_kv to the README.md file (#8865)

Signed-off-by: Amishakumari544 <amishakumari544@gmail.com>
Co-authored-by: Traky Deng <trakydeng@gmail.com>

README.md

@@ -123,7 +123,7 @@ A/B testing, canary release, blue-green deployment, limit rate, defense against
 
   - Zipkin tracing: [Zipkin](docs/en/latest/plugins/zipkin.md)
   - Open source APM: support [Apache SkyWalking](docs/en/latest/plugins/skywalking.md)
-  - Works with external service discovery: In addition to the built-in etcd, it also supports [Consul](docs/en/latest/discovery/consul_kv.md), [Nacos](docs/en/latest/discovery/nacos.md), [Eureka](docs/en/latest/discovery/eureka.md) and [Zookeeper (CP)](https://github.com/api7/apisix-seed/blob/main/docs/en/latest/zookeeper.md).
+  - Works with external service discovery: In addition to the built-in etcd, it also supports [Consul](docs/en/latest/discovery/consul.md), [Consul_kv](docs/en/latest/discovery/consul_kv.md), [Nacos](docs/en/latest/discovery/nacos.md), [Eureka](docs/en/latest/discovery/eureka.md) and [Zookeeper (CP)](https://github.com/api7/apisix-seed/blob/main/docs/en/latest/zookeeper.md).
   - Monitoring And Metrics: [Prometheus](docs/en/latest/plugins/prometheus.md)
   - Clustering: APISIX nodes are stateless, creates clustering of the configuration center, please refer to [etcd Clustering Guide](https://etcd.io/docs/v3.5/op-guide/clustering/).
   - High availability: Support to configure multiple etcd addresses in the same cluster.