Update readme

README.md

@@ -11,10 +11,10 @@ License: MIT or Apache-2.0
 Add `minotp` into your project.
 
 ```bash
-cargo add minotp
+cargo add minotp@1
 ```
 
-Also the hash you want (e.g., SHA1).
+Also all hash libraries you want (e.g., SHA1 of [Rust Crypto](https://github.com/RustCrypto)).
 
 ```bash
 cargo add sha1
@@ -33,7 +33,7 @@ let totp = Totp::<Sha1>::from_bytes(secret, COMMON_INTERVAL).unwrap();
 // Get remaining seconds
 let _remaining_seconds = totp.remaining_sec();
 
-// Get token
+// Get token as a 6-digit owned string
 let _token = totp.gen_6_str();
 
 // -- snip -- //
@@ -60,6 +60,6 @@ let _token = totp.gen_6_str();
 // -- snip -- //
 ```
 
-## Find any bug?
+## Found any bug?
 
-~~You must be kidding.~~ Fire an issue right now if you find one!
+~~You must be kidding.~~ Fire an issue right now if you found one!