update extension's README according to review comments

Signed-off-by: Marc Dumais <[email protected]>

vscode-trace-extension/README.md

@@ -1,8 +1,8 @@
 # Trace Viewer for VSCode
 
-This extension adds trace viewing capabilities to VSCode and compatible tools. 
+This extension adds trace viewing capabilities to VSCode and compatible tools. It requires running a trace server, that provides trace information. See [below](#obtain-the-trace-server-eclipse-trace-compass) for more details.
 
-For information about building this extension from sources, debugging, etc, please see [Developing.md](https://github.com/eclipse-cdt-cloud/vscode-trace-extension/tree/master/README.md)
+For information about building this extension from sources, debugging, etc, please see [here (README.md)](https://github.com/eclipse-cdt-cloud/vscode-trace-extension/tree/master/README.md)
 
 ## Using the extension
 
@@ -21,11 +21,14 @@ The `Views` tab shows all the available views for the selected trace. Click on a
 [open-output]: https://raw.githubusercontent.com/eclipse-cdt-cloud/vscode-trace-extension/master/doc/images/vscode-trace-extension-001.png
 [open-trace]: https://raw.githubusercontent.com/eclipse-cdt-cloud/vscode-trace-extension/master/doc/images/vscode-open-with-trace-viewer-001.png
 
+<a name="trace-server"></a>
+
 ## Obtain the Trace Server (Eclipse Trace Compass)
 
-In order to open and view traces, you need a trace server running on the same machine as the trace extension. You can use the Eclipse Trace Compass server:
+In order to open and view traces, you need a trace server, that supports TSP (Trace Server Protocol), running on the same machine as this extension. You can use the Eclipse Trace Compass server:
 
 Download the Latest "incubator" build:
+
 - [Linux x86_64](https://download.eclipse.org/tracecompass.incubator/trace-server/rcp/trace-compass-server-latest-linux.gtk.x86_64.tar.gz)
 - [other Operating Systems / Architectures](https://download.eclipse.org/tracecompass.incubator/trace-server/rcp/)