fix Makefile and README.md for 2000/natori

There was an attempt to get natori.c to compile.
We moved the 2 includes to the compile line
restoring the code as a 1-liner.

We forced the types of args iun main to conform to
bogons introduced by the ANSI-C committee.

Nevertheless, the code still fails to compile:

    assignment to cast is illegal, lvalue casts are not supported

This will be a TODO fix for later.

2000/natori/README.md

@@ -1,31 +1,45 @@
-Best Small Program:
+# Best Small Program:
 
-    NATORI Shin
-    Univ. of Tokyo
-    Rigakubu 7-goukan 311
-    Hongou 7-3-1, Bunkyou-ku, Tokyo
-    Japan
+NATORI Shin
+Univ. of Tokyo
+Rigakubu 7-goukan 311
+Hongou 7-3-1, Bunkyou-ku, Tokyo
+Japan
 
+# To build:
 
-Judges' Comments:
+```sh
+make
+```
 
-    To build:
+### To run:
 
-	make natori
+```sh
+./natori
+```
 
-    To run:
+### Try:
 
-	./natori
+```sh
+echo "Do or do not. There is no try."
+```
 
-    Here is a nice compact program that changes with the phase of the moon.
-    Can you figure out how it does it?
+## Judges' comments:
 
+Here is a nice compact program that changes with the phase of the moon.
+Can you figure out how it does it?
 
-Selected Author's Comments:
+The ANSI-C committee, among their multiple misdeeds, broke perfectly
+fun C programs by making it intractable for them to declare their
+own non-traditional prototype for main().  We have had uglify this
+program in order to try and prevent C compilers form failing to
+compile due to the unusual arg types of the main() function.
 
-    This program outputs a rough image of the moon in its current phase.
-    The main obfuscation of this entry is its complicated double recursion
-    (without any loop or conditional statement).
+## Author's comments:
 
-    People living in the southern hemisphere may want to change acos(l/2)
-    into acos(-l/2).
+This program outputs a rough image of the moon in its current phase.
+The main obfuscation of this entry is its complicated double recursion
+(without any loop or conditional statement).
+
+People living in the southern hemisphere may want to change acos(l/2)
+into acos(-l/2).