Updated README.md with steps to reproduce

Author: coder925

README.md

@@ -1,2 +1,30 @@
 # sample-angular-material-dialog-overview
-A basic sample showing how to use the md-dialog
+A basic sample showing an error received in the console when trying to show a basic md-dialog.
+
+#### error
+EXCEPTION: Cannot set property stack of [object Object] which has only a getter
+
+If I replace the line regarding zone in package.json to: "zone.js": "0.7.2", i instead get:
+
+EXCEPTION: Error in :0:0 caused by: The selector "app-example-dialog" did not match any elements
+
+
+#### steps to reproduce
+1. `ng new my-dialog-app` - Create app
+2. `cd my-dialog-app` - Go to app
+3. `ng generate component ExampleDialog` - Create a component for the dialog content
+4. Installed Material according to documentation:
+  - `npm install --save @angular/material` - Install Material
+  - Added to src/styles.css: `@import '~@angular/material/core/theming/prebuilt/deeppurple-amber.css';`
+  - Added MaterialModule to AppModule.
+5. Changed app.component.html and app.component.ts following the [Dialog Overview Sample](https://material.angular.io/components/component/dialog).
+6. Added ExampleDialog to ngModule bootstrap, like so: `bootstrap: [AppComponent, ExampleDialogComponent]`.
+ 
+
+#### versions
+- Angular CLI: v1.0.0-beta.25.5 
+- Node JS: v6.9.4  
+- npm: 3.10.10  
+- OS: Windows 10.0.14393 (x64)  
+- Browser: Chrome 55.0.2883.87, Edge 38.14393.0.0  
+- @angular/material": "^2.0.0-beta.1"