Changes
/* Narrow FACET-Card mechanical constraints */
====Narrow FACET-Card mechanical constraints====
* [https://fit-iot.com/files/mechanical/FACETS/narrow-facet-card-envelope.x_t Narrow FACET-Card envelope (x_t)]
* [https://fit-iot.com/files/mechanical/FACETS/narrow-facet-card-envelope.dxf DXF Narrow FACET-Card envelope (DXF]
* [https://fit-iot.com/files/mechanical/FACETS/narrow-facet-card-envelope.pdf Narrow FACET-Card envelope (PDF)]