removing notice from README (algorithm-archivists#657)

Author: leios

README.md

@@ -1,9 +1,3 @@
-> **IMPORTANT NOTE FOR NEW CONTRIBUTORS:**
->
-> We do **not** yet accept entirely new chapters by everyone. If you would like to start working on one, please contact James Schloss (Leios) first. If you create a full chapter, including text, and submit it as a pull request it is most likely going to get rejected.
->
-> If you want to help, it is best to write language examples for *existing* chapters. You can also try to find spelling or other mistakes in existing chapters and submit fixes for those.
-
 # The Arcane Algorithm Archive
 
 The Arcane Algorithm Archive is a collaborative effort to create a guide for all important algorithms in all languages.