Update README file to add otpgo library.
@@ -159,6 +159,7 @@ Please take a quick gander at the [contribution guidelines](https://github.com/a
* [loginsrv](https://github.com/tarent/loginsrv) - JWT login microservice with plugable backends such as OAuth2 (Github), htpasswd, osiam.
* [oauth2](https://github.com/golang/oauth2) - Successor of goauth2. Generic OAuth 2.0 package that comes with JWT, Google APIs, Compute Engine and App Engine support.
* [osin](https://github.com/openshift/osin) - Golang OAuth2 server library.
+* [otpgo](https://github.com/jltorresm/otpgo) - Time-Based One-Time Password (TOTP) and HMAC-Based One-Time Password (HOTP) library for Go.
* [paseto](https://github.com/o1egl/paseto) - Golang implementation of Platform-Agnostic Security Tokens (PASETO).
* [permissions2](https://github.com/xyproto/permissions2) - Library for keeping track of users, login states and permissions. Uses secure cookies and bcrypt.
* [rbac](https://github.com/zpatrick/rbac) - Minimalistic RBAC package for Go applications.
