Update comment with the right func name

Author: aslisabanci

examples/hello_world/src/Algorithm.py

@@ -13,6 +13,6 @@ def apply(input):
 # This turns your library code into an algorithm that can run on the platform.
 # If you intend to use loading operations, remember to pass a `load` function as a second variable.
 algorithm = ADK(apply)
-# The 'serve()' function actually starts the algorithm, you can follow along in the source code
+# The 'init()' function actually starts the algorithm, you can follow along in the source code
 # to see how everything works.
 algorithm.init("Algorithmia")