Add 2001/cheong/try.sh + format/typo check

2001/cheong/README.md

@@ -15,9 +15,7 @@ make
 ### Try:
 
 ```sh
-./cheong 1024
-./cheong 12345678901234567890
-./cheong 05305265226926441255040573044986873789
+./try.sh
 ```
 
 
@@ -40,9 +38,9 @@ For example,
 
 ```sh
 $ cc -o cheong cheong.c
-$ cheong 1234567890
+$ ./cheong 1234567890
 35136
-$ cheong 0200000000000000000000000000
+$ ./cheong 0200000000000000000000000000
 14142135623730
 ```