fix: updates documentation to state DID document perequisite

README.md

@@ -25,6 +25,8 @@ For development purposes, please follow below steps to integrate the library wit
 `iam-client-lib` is written in TypeScript. Make sure to have Node.js (>= v10) installed.
 Create a folder named **_iam-client-lib_** and clone this GIT project.
 
+Also note that having a DID document is a prerequisite for using iam and during initialization the user will be asked to create document if one doesn't exsit.
+
 ### Install
 
 Latest stable version
@@ -126,6 +128,8 @@ export class App {
       });
     }
 
+
+
     async initializeIAM() {
       // this will authenticate
       const { did, connected } = await this._iam.initializeConnection();