Updated README and cleaned up the code some. Added type hints.

README.md

@@ -1,18 +1,38 @@
 # Enigma Machine
-Recreates the functionality of the Enigma Machine from World War II.
+Recreates the functionality of the Enigma Machine from World War II. Mainly just an exercise in Python.
 
 ## Usage
-`uv run main.py [0-58] [0-58] [0-58] '[message]' 'e|d' [int]`
+`uv run main.py "[message]" e|d [int]`
+
 
 Where:
-- 0-58 [integer] is the first seed value
-- 0-58 [integer] is the second seed value
-- 0-58 [integer] is the third seed value
-- message is the message to be encrypted/decrypted
-- e|d is the direction of the message (encrypt or decrypt)
-- int is the number of iterations to be made (not yet implemented)
+- __"[message]"__ is the message to be encrypted/decrypted. Should be in quotes.
+- __e|d__ is the direction of the message (encrypt or decrypt).
+- __int__ is the number of iterations to be made.
 
-## Examples
-`uv run main.py  32 15 1 'This is a test.' 'e' 3`
+### Seed Values
+When encrypting a message, a file will be written to the current directory. This file contains the seed values used to 
+generate the encryption/decryption keys.
+
+The seed values are integers between 0 and 58. In the file, each seed value is on a new line.
+
+The number of iterations should match the number of seed values used.
+
+### Examples
+#### Encode
+Encode the message "You are here." with three iterations.
+
+`uv run main.py "You are here." e 3`
+
+The command above will create a file called "seed_values.txt" with the generated seed values.
+
+#### Decode
+Decode the message "NTb!QDbGDQDa" with three iterations.
+
+`uv run main.py '.NTb!QDbGDQDa' d 3`
+
+The command above expects a file called "seed_values.txt" with the seed values used to encode the message from the preceding example.
+
+## TODO
+- [ ] Add a param to tell the `encode` function to use an existing seed file.
 
-`uv run main.py 32 15 1 'Uijt!jt!b!uftu' 'd' 3`