adding link to legal basis

manual/dataset_management_details.md

@@ -89,7 +89,8 @@ Once created you are advised to edit the declaration to provide further informat
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-## 4.2.2 Manage Dataset Legal bases
+## 4.2.2 Manage Dataset Legal basis
+GDPR outlines six legal basis under which data processing is legally permitted ([find out more about the Legal basis](https://gdpr-info.eu/art-6-gdpr/)).
 
 <mark> To add new data legal bases: </mark>