Update README.md (#1233)

* Update README.md

* Update dev-packages/README.md

Co-authored-by: Martin Fleck <mfleck@eclipsesource.com>

---------

Co-authored-by: Martin Fleck <mfleck@eclipsesource.com>

dev-packages/README.md

@@ -1,5 +1,4 @@
-# Eclipse GLSP - Dev Packages [![build-status](https://img.shields.io/jenkins/build?jobUrl=https://ci.eclipse.org/glsp/job/eclipse-glsp/job/glsp/job/master)](https://ci.eclipse.org/glsp/job/eclipse-glsp/job/glsp-client/job/master) [![build-status-server](https://img.shields.io/jenkins/build?jobUrl=https://ci.eclipse.org/glsp/job/deploy-npm-glsp-config/&label=publish)](https://ci.eclipse.org/glsp/job/deploy-npm-glsp-config/)
-
+# Eclipse GLSP - Dev Packages [![build-status](https://img.shields.io/jenkins/build?jobUrl=https://ci.eclipse.org/glsp/job/eclipse-glsp/job/glsp/job/master)](https://ci.eclipse.org/glsp/job/eclipse-glsp/job/glsp-client/job/master)
 Common shared development packages for Eclipse GLSP components that are implemented with Typescript.
 
 ## Components
@@ -13,6 +12,7 @@ Common shared development packages for Eclipse GLSP components that are implemen
 - [`@eclipse-glsp/config-test`](./config-test//README.md): Provides a meta package that exports common test configuration object on top of `@eclipse-glsp/config`:
  - [Mocha](https://www.npmjs.com/package/@eclipse-glsp/mocha-config) (`.mocharc`)
  - [NYC](https://www.npmjs.com/package/@eclipse-glsp/nyc-config): (`.nycrc`)
+- [`@eclipse-glsp/dev`](./dev//README.md): Provides an all-in-one meta package that includes `@eclipse-glsp/cli`, `@eclipse-glsp/config` and `@eclipse-glsp/config-dev`
 
 The packages are available via npm and are used by all GLSP components implemented with Typescript.