fix: anchor link for curly's law from Single Responsibility Principle section (#31)

* update Curly's Law link from Single Responsibility Principle section

removed a '-' which was breaking the link

* lowercase c

Author: jglu

README.md

@@ -539,7 +539,7 @@ Why
 
 How
 
-- Apply [Curly's Law](#Curly-s-Law).
+- Apply [Curly's Law](#curlys-Law).
 
 Resources