docs(README): Update section title to 'Making everything optional' (#46)

Author: m31coding

README.md

@@ -518,7 +518,7 @@ university.AddStudent(s => s.Named("Alice", "King").OfAge(22)...);
 Note that if you want to set a member of a Fluent API class, you can simply use `FluentMember` or `FluentCollection` instead of the pattern above.
 
 
-### Make everything optional
+### Making everything optional
 
 There are two ways to make all fields, properties, and methods optional in your fluent API. If the initialization order matters for your use case, use the following approach:
 
@@ -586,4 +586,4 @@ In particular, if your IDE visually indicates that there are errors in your code
 
 This library is free. If you find it valuable and wish to express your support, please leave a star. You are kindly invited to contribute. If you see the possibility for enhancement, please create a GitHub issue and you will receive timely feedback.
 
-Happy coding!
+Happy coding!