Update README.md

For developers: **To have SSH access to all Elphel's repositories clone this project using SSH**

Note for developers: **To have SSH access to all Elphel's repositories clone this project using SSH**

# elphel393

Scripts for fetching and setting up build environment for elphel393 camera images,

it clones and configures several individual repositories, such as

The project contains scripts for fetching and setting up build environment that will generate firmware images for Elphel393 camera systems.

It clones and configures several individual repositories, such as

* https://git.elphel.com/Elphel/linux-elphel

* https://git.elphel.com/Elphel/x393

* http://git.yoctoproject.org

* https://github.com/Xilinx/meta-xilinx

* https://git.elphel.com/Elphel/meta-elphel393

The same script pulls updates from these repositories

The same script (setup.py) pulls updates from these repositories

### Get environment

#### Dependencies