Update README.md

Author: codeandcode0x

README.md

@@ -79,7 +79,7 @@ go get github.com/codeandcode0x/traceandtrace-go
 ### HTTP tracing
 
 Create a trace on the http request method side.
-![http to grpc client](wiki/imgs/http_client_2.jpg)
+<img src="wiki/imgs/http_client_2.jpg" width="80%" alt="http to grpc client"><br>
 tags are map[string]string type, you can pass logs k-v, tag and field.
 
 
@@ -134,7 +134,7 @@ newRpcServiceReq(tracer)
 ```
 
 ### Http to gRPC tracing
-![http to grpc client](wiki/imgs/httptogrpc_client.jpg)
+<img src="wiki/imgs/httptogrpc_client.jpg" width="80%" alt="http to grpc client"><br>
 **ptx** is parent context, it can create sub-context trace span <br>
 To call gRPC on the http server side, you need to add the parent context to the gRPC client. For details, you can see the [example](example/http/httpServer.go) .
 
@@ -172,7 +172,7 @@ for {
 ```
 
 # Jaeger or Zipkin Tracing
-<img src="wiki/imgs/zipkin.jpg" width="80%" alt="tracing">
+<img src="wiki/imgs/zipkin.jpg" width="100%" alt="tracing">
 
 # Maintainer
 <img src="wiki/imgs/wx.jpeg" width="350" >
@@ -181,4 +181,4 @@ for {
 
 
 
-    
+