add images

README.md

@@ -22,10 +22,11 @@ Reasons to try out GreenFeet Workflow
 * It is easy to embed it directly into your solutions to improve resiliance
 
 **Steps are implemented in C# *not* in some obscure language** 
-* hence the code is readable, deubable, testable - like the rest of your code base
+* hence the code is readable, durable, testable - like the rest of your code base
 * the code can use existing best practices for logging, IOC containers etc.
 * you can use existing branching, and deployment strategies and processes
-* You *do not* need a specual graphical editor for specifying flows
+* You *do not* need a special graphical editor for specifying flows
+* You can easily step-debug your code 
 
 **The datamodel is simple - just three DB tables.** 
 * If things break in production, it is easy for you to figure out what has happened and how to remedy the problem
@@ -44,7 +45,7 @@ Reasons to try out GreenFeet Workflow
 
 # 2. Getting started
 
-To define a workflow with the two steps  `FetchData` (which fetches some data), and `AnalyzeWords` (that analyzes the data), we implement interface `IStepImplementation` twice. 
+To define a workflow with the two steps `FetchData` (which fetches some data), and `AnalyzeWords` (that analyzes the data), we implement interface `IStepImplementation` twice. 
 To transition from one step to one (or several steps), use `Done()`. This tells the engine that the current step has finished sucesfully. You can supply one or more steps that will be executed in the future. 
 This is how you control ordering of events.
 

doc/overview.drawio

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