chore: update README with plugins work and add DNS plugin in default supported plugins list (open-telemetry#529)

Author: mayurkale22

README.md

@@ -89,6 +89,7 @@ Maintainers ([@open-telemetry/js-maintainers](https://github.com/orgs/open-telem
 | [@opentelemetry/metrics](https://github.com/open-telemetry/opentelemetry-js/tree/master/packages/opentelemetry-metrics) | This module provides instruments and meters for reporting of time series data. |
 | [@opentelemetry/node](https://github.com/open-telemetry/opentelemetry-js/tree/master/packages/opentelemetry-node) | This module provides automatic tracing for Node.js applications. It is intended for use on the server only. |
 | [@opentelemetry/web](https://github.com/open-telemetry/opentelemetry-js/tree/master/packages/opentelemetry-web) | This module provides automated instrumentation and tracing for Web applications. It is intended for use in the browser only. |
+| [@opentelemetry/base](https://github.com/open-telemetry/opentelemetry-js/tree/master/packages/opentelemetry-base) | This package provides base code for the SDK packages (tracing and metrics). |
 
 ### Exporters
 
@@ -99,7 +100,7 @@ OpenTelemetry is vendor-agnostic and can upload data to any backend with various
 - [@opentelemetry/exporter-zipkin](https://github.com/open-telemetry/opentelemetry-js/tree/master/packages/opentelemetry-exporter-zipkin)
 
 #### Metric Exporters
-- [@opentelemetry/exporter-prometheus](https://github.com/open-telemetry/opentelemetry-js/tree/master/packages/opentelemetry-exporter-prometheus) - WIP
+- [@opentelemetry/exporter-prometheus](https://github.com/open-telemetry/opentelemetry-js/tree/master/packages/opentelemetry-exporter-prometheus)
 
 ### Plugins
 
@@ -112,6 +113,8 @@ OpenTelemetry can collect tracing data automatically using plugins. Vendors/User
 - [@opentelemetry/plugin-dns](https://github.com/open-telemetry/opentelemetry-js/tree/master/packages/opentelemetry-plugin-dns)
 - [@opentelemetry/plugin-mongodb](https://github.com/open-telemetry/opentelemetry-js/tree/master/packages/opentelemetry-plugin-mongodb) - WIP
 - [@opentelemetry/plugin-postgres](https://github.com/open-telemetry/opentelemetry-js/tree/master/packages/opentelemetry-plugin-postgres) - WIP
+- [@opentelemetry/plugin-redis](https://github.com/open-telemetry/opentelemetry-js/tree/master/packages/opentelemetry-plugin-redis) - WIP
+- [@opentelemetry/plugin-mysql](https://github.com/open-telemetry/opentelemetry-js/tree/master/packages/opentelemetry-plugin-mysql) - WIP
 
 #### Web Plugins
 - [@opentelemetry/plugin-document-load](https://github.com/open-telemetry/opentelemetry-js/tree/master/packages/opentelemetry-plugin-document-load)

packages/opentelemetry-node/src/config.ts

@@ -39,4 +39,8 @@ export const DEFAULT_INSTRUMENTATION_PLUGINS: Plugins = {
     enabled: true,
     path: '@opentelemetry/plugin-https',
   },
+  dns: {
+    enabled: true,
+    path: '@opentelemetry/plugin-dns',
+  },
 };