Documentation for adding a DNA part to the Reclone collection

[jcmolloy]

We need a guide for new users on how to add a DNA part to the Reclone Collection e.g. how to use the sytax, which restriction sites to avoid, general criteria, where to add suggestions

First pass started here:
https://docs.google.com/document/d/1nLqDTn2b5sqTM4LF5z6urGMlGPDOzY_1mPV3IsFfGD0/edit?tab=t.0