Update extending-inspector.md

Author: vtrifonov

docs/extending-inspector.md

@@ -70,6 +70,8 @@ This step involves fetching and building the V8 projectory, explanation for whic
  - [create a unique pointer wrapper for your new agent impl instance](https://github.com/NativeScript/android-runtime/blob/5a04e09439e2bc6a201577895b9ac6538441e758/test-app/runtime/src/main/cpp/v8_inspector/src/inspector/v8-inspector-session-impl.cc#L141), and call the static domain dispatcher's [wire](https://github.com/NativeScript/android-runtime/blob/5a04e09439e2bc6a201577895b9ac6538441e758/test-app/runtime/src/main/cpp/v8_inspector/src/inspector/v8-inspector-session-impl.cc#L143) method
  - make sure to call [agent.disable](https://github.com/NativeScript/android-runtime/blob/5a04e09439e2bc6a201577895b9ac6538441e758/test-app/runtime/src/main/cpp/v8_inspector/src/inspector/v8-inspector-session-impl.cc#L167) in V8InspectorSessionImpl's destructor.
  - register the newly implemented domain as a supported one inside [ V8InspectorSessionImpl::supportedDomainsImpl()](https://github.com/NativeScript/android-runtime/blob/5a04e09439e2bc6a201577895b9ac6538441e758/test-app/runtime/src/main/cpp/v8_inspector/src/inspector/v8-inspector-session-impl.cc#L389)
+ - `#include "src/inspector/ns-v8-debugger-agent-impl.h"`
+ - replace **V8DebuggerAgentImpl** with **NSV8DebuggerAgentImpl**
 
 9. Don't forget to add the new classes to the CMakeLists!
-10. Test whether the new domain agent is registered by opening Chrome DevTools. In order to debug the Chrome DevTools frontend, you could open the Chrome DevTools inside an Android Chrome DevTools session - Ctrl(Cmd) + Shift + I.
+11. Test whether the new domain agent is registered by opening Chrome DevTools. In order to debug the Chrome DevTools frontend, you could open the Chrome DevTools inside an Android Chrome DevTools session - Ctrl(Cmd) + Shift + I.