Correct typo in documentation of MBEDTLS_SSL_RENEGOTIATION
/**
* \def MBEDTLS_SSL_RENEGOTIATION
*
- * Disable support for TLS renegotiation.
+ * Enable support for TLS renegotiation.
*
* The two main uses of renegotiation are (1) refresh keys on long-lived
* connections and (2) client authentication after the initial handshake.
