Refactor function names, added comments

- encode_256 -> convert_to_int
- encode_dcode -> convert_to_dollcode
- print_dcode -> print_dollcode
- comments explaining each function

main.py

···
 BASE_NUM = 3
 
 
-def encode_256(input: str):
+# encodes input string into integer by using ord()
+def convert_to_int(input: str):
     result = 0
 
     for char in input:
···
     return result
 
 
-def encode_dcode(num: int):
+# converts encoded base256 int -> bijective base-3 numeration
+# then inserts corresponding number (3, 1, 2) into output list
+def convert_to_dollcode(num: int):
     output: list[str] = []
     window: int = num
 
···
     return output
 
 
-def print_dcode(output: list[str], copy: bool):
+# loops dollcode list, appends each output list entry to
+# string, then prints or prints + copies if appropriate flag was passed
+def print_dollcode(output: list[str], copy: bool):
     string: str = ""
 
     for char in output:
···
 
 
 def main(input: str, copy: bool):
-    print_dcode(encode_dcode(encode_256(input)), copy)
+    print_dollcode(convert_to_dollcode(convert_to_int(input)), copy)
 
 
 if __name__ == "__main__":