Update README.md (#5757)

README.md

@@ -38,7 +38,8 @@ including
 1. Go agent.
 1. LUA agent especially for Nginx, OpenResty.
 1. Service Mesh Observability. Support Mixer telemetry. Recommend to use Envoy Access Log Service (ALS) for better performance, first introduced at [KubeCon 2019](https://www.youtube.com/watch?v=tERm39ju9ew).
-1. Metrics system, including Prometheus, Spring Sleuth(Micrometer).
+1. Metrics system, including Prometheus, OpenTelemetry, Spring Sleuth(Micrometer).
+1. Browser application performance, including metrics and error logs.
 1. Zipkin v1/v2 and Jaeger gRPC format with limited topology and metrics analysis.(Experimental).
 
 SkyWalking OAP is using the STAM(Streaming Topology Analysis Method) to analysis topology in the tracing based agent scenario 
@@ -48,6 +49,7 @@ for better performance. Read [the paper of STAM](https://wu-sheng.github.io/STAM
 Version Series | Version | 
 ----------- | ---------- |
 8.x| [8.x dev](docs/README.md)|
+| | [8.2.0](https://github.com/apache/skywalking/blob/v8.2.0/docs/README.md) |
 | | [8.1.0](https://github.com/apache/skywalking/blob/v8.1.0/docs/README.md) |
 | | [8.0.1](https://github.com/apache/skywalking/blob/v8.0.1/docs/README.md) |