[add] Simplify.Web + Angular example readme

Author: i4004

src/SampleApps/SampleApp.Angular/README.md

@@ -0,0 +1,26 @@
+# Simplify.Web + Angular example
+
+## Pre-Requisites
+
+* .NET 7 or higher
+* Node JS 16.13.0 or higher
+
+## Debug Launch options
+
+### Via VS Code
+
+1. Run debug of `SampleApp.Angular` profile in VS Code (or VS Codium)
+2. Launch front end separately via `npm run start` from `ClientApp`
+3. Go to <http://localhost:4200> URL
+
+### Via Microsoft Visual Studio
+
+1. Run debug of `SampleApp.Angular` profile in Microsoft Visual Studio
+2. <http://localhost:5000> URL will be opened in prowser, wait some time and user will be redirected to <http://localhost:4200> URL
+
+#### Commands sequence
+
+1. Visual Studio will open <http://localhost:5000> URL
+2. SPA backend will execute `npm install` command
+2. SPA backend will execute `npm run start` which will trigger `ng build` and `ng serve` commands
+4. After successful launch of Angular front end application user will be redirected to <http://localhost:5000> URL