Remove leftover mentions of jaeger in http example (#238)

Jaeger exporter was replaced with stdout exporter in the example, so
update the README to reflect that. Also drop the screenshot - it's not
referenced anywhere.

example/README.md

@@ -2,7 +2,8 @@
 
 ## HTTP
 This is a simple example that demonstrates tracing http request from client to server. The example
-shows key aspects of tracing such as 
+shows key aspects of tracing such as:
+
 - Root Span (on Client)
 - Child Span (on Client)
 - Child Span from a Remote Parent (on Server)
@@ -14,13 +15,13 @@ Example uses
 - open-telemetry SDK as trace instrumentation provider,
 - httptrace plugin to facilitate tracing http request on client and server
 - http trace_context propagation to propagate SpanContext on the wire.
-- jaeger exporter to export spans to visualize and store them.
+- stdout exporter to print information about spans in the terminal
 
 ### How to run?
 
 #### Prequisites
 
-- go 1.12 installed 
+- go 1.12 installed
 - GOPATH is configured.
 
 #### 1 Download git repo
@@ -32,16 +33,14 @@ GO111MODULE="" go get -d go.opentelemetry.io
 ```
 cd $GOPATH/src/go.opentelemetry.io/example/http/
 go run ./server/server.go
-``` 
+```
 
 #### 3 Start Client
 ```
 cd $GOPATH/src/go.opentelemetry.io/example/http/
 go run ./client/client.go
-``` 
+```
 
 #### 4 Check traces in stdout
 
 The spans should be visible in stdout in the order that they were exported.
-
-