Fix typo in Twilio name

docs/keyboard-interactive.md

@@ -165,4 +165,4 @@ Content-Length: 18
 {"auth_result": 1}
 ```
 
-An example keyboard interactive program allowing to authenticate using [Twillo Authy 2FA](https://www.twilio.com/docs/authy) can be found inside the source tree [authy](../examples/OTP/authy) directory.
+An example keyboard interactive program allowing to authenticate using [Twilio Authy 2FA](https://www.twilio.com/docs/authy) can be found inside the source tree [authy](../examples/OTP/authy) directory.

examples/OTP/authy/README.md

@@ -1,6 +1,6 @@
 # Authy
 
-These example show how-to integrate [Twillo Authy API](https://www.twilio.com/docs/authy/api) for One-Time-Password logins.
+These example show how-to integrate [Twilio Authy API](https://www.twilio.com/docs/authy/api) for One-Time-Password logins.
 
 The examples assume that the user has the free [Authy app](https://authy.com/) installed and uses it to generate offline [TOTP](https://en.wikipedia.org/wiki/Time-based_One-time_Password_algorithm) codes (soft tokens).