Update README.adoc

Removed deadline for the final updates, unfortunately I couldn't make it in the last year.

Author: rhuss

README.adoc

@@ -24,7 +24,7 @@ Also, we love contributions like spelling fixes, bug fixes, and improvements;...
 == Patterns
 
 All examples are categorized according to the Book's patterns category.
-Each example is contained in a different directory per pattern and is self-contained. footnote:[Examples marked with an "*" are still in progress to be updated. We expect to be finished until the end of April 2023]
+Each example is contained in a different directory per pattern and is self-contained. footnote:[Examples marked with an "*" are still in progress to be updated.]
 
 === Foundational Patterns