Merge pull request #47 from amd/alex_doc_update

added pointer to PLUGIN_DOC.md in README

Author: alexandraBara

EXTENDING.md

@@ -131,5 +131,4 @@ if __name__ == "__main__":
 ```
 
 ## external plugins
-External plugins can be added and installed in the same env as node-scraper plugins. Find an
-example of an external plugin in **`/docs/node-scraper-external`**
+External plugins can be added and installed in the same env as node-scraper plugins. See -> [docs/node-scraper-external/README.md](node-scraper-external/README.md)

README.md

@@ -19,6 +19,8 @@ system debug.
   - [Plugin config: `--plugin-configs` command](#plugin-config---plugin-configs-command)
   - [Reference config: `gen-reference-config` command](#reference-config-gen-reference-config-command)
 - **Extending Node Scraper (integration & external plugins)** → See [EXTENDING.md](EXTENDING.md)
+- **Full view of the plugins with the associated collectors & analyzers as well as the commands
+invoked by collectors** -> See [docs/PLUGIN_DOC.md](docs/PLUGIN_DOC.md)
 
 ## Installation
 ### Install From Source