add: advanced funcs

27-functions-advanced/exercises/README.md

@@ -0,0 +1,8 @@
+# IDEAS
+
+* Create a chainable funcs for strings
+* Create a mapper instead of a filter
+* Create map/reduce
+* Create a time it takes higher-order func
+* Use stdlib funcs with func values
+* Create a functional program with structs (filter etc)