add missing README.md, update .vscodeignore

Author: TsMonkeyPatch

src/.vscodeignore

@@ -1,4 +1,5 @@
 **
 
 !package.json
-!dist/
+!dist/vscode-electron.js
+!README.MD

src/README.md

@@ -0,0 +1,37 @@
+# Install Electron via VSCode extension
+
+Install or Executes Electon apps inside of vscode
+
+## Motivation
+
+If an extension is to be created which displays a dialog with the help of Electron, or is to call up a session cookie, this is currently only possible with great difficulty because it is not possible to install electron via the package.json.
+
+1. Option we could deliver Electron which leads 
+   1. to a very large extension and more importantly
+   2. the electron binaries are OS specific. So if I installed the extension on a Windows there is electron for Windows inside.
+2. Option Hope that Electron is installed globally, otherwise it won't work.
+3. Option is to compile the app beforehand, but this must be done separately for Mac, Windows and Linux.
+
+The aim of this extension is to solve precisely those problems.
+
+1. It is checked whether an Electron is available (global) or with Mac whether it is installed under Applications.
+2. If it is not installed, the OS-specific version of Electron is downloaded for Mac, Windows or Linux, thus ensuring platform independence.
+
+Furthermore, javascript files can now be started directly via vscode in electron so the files no longer have to be compiled.
+
+## Usage
+
+This is more designed as a service, that means you can install electron but it will not help alot. These is an example how this could be used inside your extension @see [Vscode-Electron-Demo](https://github.com/q-masters/vscode-electron-demo) how this could be used inside an extension.
+
+## Commands
+
+|name|params|description|
+|-|-|-|
+|qmasters:electron.install|-|checks for a valid installation and install electron is nothing exists|
+|qmasters:electron.run|file path|file to execute [@example](https://github.com/electron/electron-quick-start/blob/master/main.js)|
+
+## Development
+
+- go into src directory
+- npm install
+- start extension via F5 inside of vscode