Golang：如何在HTTP客户端的TLS配置中指定证书

/usr/abc/my.crt

mTLSConfig := &tls.Config {
    CipherSuites: []uint16 {
        tls.TLS_RSA_WITH_RC4_128_SHA,
        tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
        tls.TLS_RSA_WITH_AES_128_CBC_SHA,
        tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
        tls.TLS_RSA_WITH_AES_128_CBC_SHA,
        tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
    }
}

mTLSConfig.PreferServerCipherSuites = true
mTLSConfig.MinVersion = tls.VersionTLS10
mTLSConfig.MaxVersion = tls.VersionTLS10

tr := &http.Transport{
    TLSClientConfig: mTLSConfig,
}

c := &http.Client{Transport: tr}

So how to assign a certificate in my TLS config? I see the certificate settings at http://golang.org/pkg/crypto/tls/#Config can someone suggest how to config my cert location there?

mTLSConfig.Config{Certificates: []tls.Certificate{'/usr/abc/my.crt'}}

/usr/abc/my.crt