Update README to accurately reflect new code

hello-wuffs-c/README.md

diff --git a/hello-wuffs-c/README.md b/hello-wuffs-c/README.md
index 60b2996..d07bfd3 100644
--- a/hello-wuffs-c/README.md
+++ b/hello-wuffs-c/README.md
@@ -20,13 +20,14 @@
 
 ```
 $ ./run.sh
+--- C Implementation prints ---
 0
 12
 56789
 4294967295
 0
 3197704724
---------
+------ Wuffs Impl Prints ------
 0
 12
 56789

hello-wuffs-c/main.c

diff --git a/hello-wuffs-c/main.c b/hello-wuffs-c/main.c
index cd95c46..afa0b51 100644
--- a/hello-wuffs-c/main.c
+++ b/hello-wuffs-c/main.c
@@ -17,6 +17,8 @@
 #include <inttypes.h>
 #include <stdio.h>
 #include <string.h>
+
+// See naive-parse.c and wuffs-parse.c for implementations of this function
 uint32_t parse(char *, size_t);
 
 void run(char* p) {