Update README.md, doc/img/demo-sat-hw.jpg files

README.md

@@ -7,6 +7,8 @@ The software was modelled, developed and deployed using [TASTE](https://taste.to
 MSP430 Demo-Sat is distributed under the terms of the GNU Lesser General Public License
 (see [LICENSE](./LICENSE) file).
 
+![Demo-Sat Hardware](./doc/img/demo-sat-hw.jpg)
+
 Features
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