minor correction 03-md.md

Added reference to FAIR data principles page of this repo

docs/_Research-Data-Management/03-md.md

@@ -31,7 +31,7 @@ For example, when you use your smartphone camera to take photos of your loved on
 
 Several years later, you find the photo on your **new mobile device**, and you start to wonder **where** and **when** you took the picture. You open up the photograph file description, and there it is. Even on your new device, you can still access the metadata of the photograph you took several years before. So you can correctly recall when the photo was taken and where it was created. If the environmental conditions match, you can replicate the photograph using the Camera information. 
 
-It is worth noting here that in this particular case, your metadata was interoperable (you could access it even on your new mobile device - by you and your device), and it was reusable (in theory, you could use the metadata of the original photo to replicate it, even several years later). Still, it was not findable or accessible.
+It is worth noting here that in this particular case, your metadata was interoperable (you could access it even on your new mobile device - by you and your device), and it was reusable (in theory, you could use the metadata of the original photo to replicate it, even several years later). Still, it was not findable or accessible for anyone else. If you do not know to what we are hinting here, we advise you to read the (**FAIR Data Principles**)[./docs/_Research-Data-Management/04-fair.md] section of this repository.
 
 In this particular case, we could consider ourselves lucky as the metadata for our photograph was created automatically. That might not always be the case when dealing with (meta)data generated in our research.