Update README.md

Author: lganzzzo

README.md

@@ -1,2 +1,53 @@
-# example-async-api [![Build Status](https://dev.azure.com/lganzzzo/lganzzzo/_apis/build/status/oatpp.example-async-api?branchName=master)](https://dev.azure.com/lganzzzo/lganzzzo/_build?definitionId=16&branchName=master)
+# Async API Example [![Build Status](https://dev.azure.com/lganzzzo/lganzzzo/_apis/build/status/oatpp.example-async-api?branchName=master)](https://dev.azure.com/lganzzzo/lganzzzo/_build?definitionId=16&branchName=master)
 
+Example project how-to use oatpp asynchronous API.
+
+#### More about oat++:
+- Website: [https://oatpp.io](https://oatpp.io)
+- Docs: [https://oatpp.io/docs/start](https://oatpp.io/docs/start)
+- Oat++ Repo: [https://github.com/oatpp/oatpp](https://github.com/oatpp/oatpp)
+
+## Overview
+
+### Project layout
+
+```
+
+- CMakeLists.txt               // project loader script. load and build dependencies 
+- main/                        // main project directory
+    |
+    |- CMakeLists.txt          // projects CMakeLists.txt
+    |- src/                    // source folder
+    |- test/                   // test folder
+    
+```
+```
+- src/
+    |
+    |- controller/              // Folder containing controller where all endpoints are declared
+    |- dto/                     // DTOs are declared here
+    |- AppComponent.hpp         // Service config
+    |- Logger.hpp               // Application Logger
+    |- App.cpp                  // main() is here
+    
+```
+
+---
+
+### Build and Run
+
+#### Using CMake
+
+```
+$ mkdir build && cd build
+$ cmake ..
+$ make run        ## Download, build, and install all dependencies. Run project
+
+```
+
+#### In Docker
+
+```
+$ docker build -t example-async-api .
+$ docker run -p 8000:8000 -t example-async-api
+```