Some corrections and small change in readme

Author: codingseb

README.md

@@ -512,7 +512,7 @@ Here is a list of which operators are supported in ExpressionEvaluator or not
 
 ### Assignation operators
 
-** Warning all of the following operators change the value of their left element.**
+**Warning all of the following operators change the value of their left element.**
 
 Assignation operators (and also postfix operators (++ and --)) are usable on : 
 
@@ -638,3 +638,4 @@ I would say every C# evaluation libraries have drawbacks and benefits, Expressio
 
 The biggest difference of ExpressionEvaluator is that everything is evaluated on the fly, nothing is compiled or transpile nor in CLR/JIT nor in lambda expressions nor in javascript or other languages stuffs.
 So it can be slower in some cases (sometimes not) but it also avoid a lot of memory leaks and already allow to evaluate some small scripts.
+And if you don't want an another .dll file in your project, you only need to copy one [C# file](./CodingSeb.ExpressionEvaluator/ExpressionEvaluator.cs) in your project.