Make README more detailed

Author: YuriiChere

README.md

@@ -1,6 +1,6 @@
 # Pre-requisites:
 
-1. Visual Studio installed on your machine.
+1. Visual Studio installed on your machine. Workload ".NET desktop development" should be installed in Visual Studio too (if no - add it with Visual Studio Installer)
    * [Install it from here](https://visualstudio.microsoft.com/downloads/)
 2. Chrome Webdriver is on your machine and is in the PATH. Here are some resources from the internet that'll help you.
    * https://splinter.readthedocs.io/en/0.1/setup-chrome.html
@@ -15,7 +15,7 @@
 3. Get your API key to set it in code (or in the APPLITOOLS_API_KEY environment variable).
     * You can get your API key by logging into Applitools > Person Icon > My API Key.
 4. Double click the `ApplitoolsTutorial.sln`. This will open the project in Visual Studio
-5. Change the `APPLITOOLS_API_KEY` with your own.
-    * Login to Applitools > Click on the Person icon > My API Key
+5. Change the `APPLITOOLS_API_KEY` with your own in code.
    Set your ApiKey in string 'conf.SetApiKey("...") ' (or comment the string and set APPLITOOLS_API_KEY environment variable)
-6. Navigate to Test Explorer, select test VGTest and hit Run
+6. Build the project. It can take several minutes.
+7. Navigate to Test Explorer, select test VGTest and hit Run