Update ReadME.md File To Guide Contributors

Author: zeyadetman

README.md

@@ -2,13 +2,25 @@
 Computer Security algorithms in C#
 
 ## List of Algorithms
-- [ ] AutokeyVigenere.
-- [x] Ceaser.
-- [x] Columnar.
-- [x] HillCipher.
-- [x] Monoalphabetic.
-- [x] PlayFair.cs
+- [ ] AutokeyVigenere
+- [x] Ceaser
+- [x] Columnar
+- [x] HillCipher
+- [x] Monoalphabetic
+- [x] PlayFair
 - [x] RailFence
 - [x] RepeatingKeyVigenere
+- [x] RSA
+- [ ] MD5 *Not completed*
+- [x] RC4
+- [ ] AES *Don't pass all tests*
+- [x] DES
+- [x] TripleDES
+- [x] DiffieHellman
+- [ ] ELGAMAL
 
-*This Repository is in progress, if you want to contribute please send me an email.*
+## Contributions
+
+- Add More Security Algorithms.
+- Refactoring code and increase the performance  of Algorithms.
+- Complete and Fix the Incompleted Algorithms