Apply suggestions from code review

Co-authored-by: Mikkel Nylander Bundgaard <[email protected]>

documentation/NUnit4002.md

@@ -16,11 +16,41 @@ Replace 'EqualTo' with a keyword in the corresponding specific constraint.
 
 ## Motivation
 
-ADD MOTIVATION HERE
+Sometimes constraints can be written more concisely using the inbuilt constraints provided by NUnit -
+e.g. `Is.True` instead of `Is.EqualTo(true)`.
+
+Also, from NUnit version 4.3.0 where new overloads of `Is.EqualTo` were introduced, it is sometimes
+not possible to uniquely determine `default` when provided as the expected value - e.g. in 
+`Is.EqualTo(default)`. Again, in such cases, it is better to use the inbuilt constraint provided by NUnit.
+
+Some examples of constraints that can be be simplified by using a more specific constraint can be seen below.
+
+```csharp
+[Test]
+public void Test()
+{
+    Assert.That(actualFalse, Is.EqualTo(false));
+    Assert.That(actualTrue, Is.EqualTo(true));
+    Assert.That(actualObject, Is.EqualTo(null));
+    Assert.That(actualObject, Is.EqualTo(default));
+    Assert.That(actualInt, Is.EqualTo(default));
+}
 
 ## How to fix violations
 
-ADD HOW TO FIX VIOLATIONS HERE
+The analyzer comes with a code fix that will replace the constraint `Is.EqualTo(x)` with
+the matching `Is.X` constraint (for some `x`). So the code block above will be changed into
+
+```csharp
+[Test]
+public void Test()
+{
+    Assert.That(actualFalse, Is.False);
+    Assert.That(actualTrue, Is.True);
+    Assert.That(actualObject, Is.Null);
+    Assert.That(actualObject, Is.Null);
+    Assert.That(actualInt, Is.Default);
+}
 
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