Can't find option ‘Install zip from SD card’ after installing Clockworkmod I'm following this guide to root my HTC Desire 510.

I reach the step Step 4 – Root the HTC Desire 510.

I perform the command fastboot flash recovery recovery.img in a cmd prompt, and I receive the message: 

sending 'recovery' (10594 KB)...
OKAY [1.352s]
writing 'recovery'....
OKAY [0.731s]
finished. total time 2.085s


I rebooted my phone, then powered off the phone.

At Step 5 – Install SuperSU, I don't see the option ‘Install zip from SD card’. I don't see Install Zip either.

This is what I see:

FASTBOOT
RECOVERY
FACTORY RESET
SIMLOCK
CHECK SMARTSD
IMAGE CRC
SHOW BARCODE


What do I need to do to Install SuperSU?

Help appreciated.
FASTBOOT REBOOT RECOVERY
ONE THAT RE STARTS

adb usb

adb devices

adb -s sideload nameofzip.zip

(-s is the serial # of device)