Docu fixes

Author: akudev

README.md

@@ -29,7 +29,7 @@ From the list, you can not only access each exercise directly, but also also bro
 * [Exercise 1 - Create And Run Your Application](exercises/ex1/) (*[browse sources](exercises/ex1/com.myorg.myapp) - [run app](https://sap-samples.github.io/ui5-typescript-tutorial/exercises/ex1/)*)
 * [Exercise 2 - Create the Initial User Interface and set up Routing](exercises/ex2/) (*[browse sources](exercises/ex2/com.myorg.myapp) - [run app](https://sap-samples.github.io/ui5-typescript-tutorial/exercises/ex2/)*)
 * [Exercise 3 - Add Translated UI Texts](exercises/ex3/) (*[browse sources](exercises/ex3/com.myorg.myapp) - [run app](https://sap-samples.github.io/ui5-typescript-tutorial/exercises/ex3/)*)
-* [Exercise 4 - Enhance the User Interface and Create a Controller](exercises/ex4/) (*[browse sources](exercises/ex4/com.myorg.myapp) - [run app](https://sap-samples.github.io/ui5-typescript-tutorial/exercises/ex4/)*)
+* [Exercise 4 - Enhance the User Interface and Use Formatters](exercises/ex4/) (*[browse sources](exercises/ex4/com.myorg.myapp) - [run app](https://sap-samples.github.io/ui5-typescript-tutorial/exercises/ex4/)*)
 * [Exercise 5 - Create a Second View](exercises/ex5/) (*[browse sources](exercises/ex5/com.myorg.myapp) - [run app](https://sap-samples.github.io/ui5-typescript-tutorial/exercises/ex5/)*)
 * [Exercise 6 - Load Incidence History Data](exercises/ex6/) (*[browse sources](exercises/ex6/com.myorg.myapp) - [run app](https://sap-samples.github.io/ui5-typescript-tutorial/exercises/ex6/)*)
 * [Exercise 7 - Create and Use a Custom Control](exercises/ex7/) (*[browse sources](exercises/ex7/com.myorg.myapp) - [run app](https://sap-samples.github.io/ui5-typescript-tutorial/exercises/ex7/)*)

exercises/ex2/README.md

@@ -6,8 +6,9 @@ In this exercise, you will load live data and display first parts of it: the sta
 
 After completing this section, you will have a basic understanding of how UI5 application code looks different due to TypeScript and due to the modern JavaScript syntax which we suggest to use in TypeScript applications.
 
-1.  Open the file `src/Component.ts` and look at the overall file structure.<br>
-It starts with two `import` statements and a class definition:
+1.  Open the file `src/Component.ts` in a TypeScript-aware code editor of your choice (e.g. Visual Studio Code).
+
+	Now look at the overall file structure. It starts with two `import` statements and a class definition:
 
 	```ts
 	import UIComponent from "sap/ui/core/UIComponent";

exercises/ex3/README.md

@@ -31,4 +31,4 @@ To launch the application in a different language to test these changes, you can
 
 You've now provided all needed UI texts in two languages and the base "developer language".
 
-Continue to - [Exercise 4 - Enhance the User Interface and Create a Controller](../ex4/README.md)
+Continue to - [Exercise 4 - Enhance the User Interface and Use Formatters](../ex4/README.md)

exercises/ex4/README.md

@@ -1,4 +1,4 @@
-# Exercise 4 - Enhance the User Interface and Create a Controller
+# Exercise 4 - Enhance the User Interface and Use Formatters
 
 In this exercise, you will enhance the user interface to display data and add formatter functions to the controller.