docs: minor typo in limitations.md
It said "an maximum" but I believe it should be "a maximum".
@@ -14,7 +14,7 @@ Our recommendation is to use MySQL 5.7+ or PostgreSQL.
## OAuth 2.0 Client Secret Length
-OAuth 2.0 Client Secrets are hashed using BCrypt. BCrypt has, by design, an
+OAuth 2.0 Client Secrets are hashed using BCrypt. BCrypt has, by design, a
maximum password length. The Golang BCrypt library has a maximum password length
of 73 bytes. Any password longer will be "truncated":
