add credits

Privacy.md

@@ -20,3 +20,5 @@
 Short answer: No.
 
 Long answer: We do not sell, share, publish or trade your information with third parties.
+
+Adapted from [OVK Privacy Policy](https://ovk.to/privacy)

TOS.md

@@ -17,3 +17,5 @@ It is forbidden publishing and storing any content, which:
 4. Has scenes of inhumane appeal with people or animals.
 5. Violates human rights.
 6. Interferes with compliance with the Rules or usage of any **extera.xyz** services.
+
+Adapted from [OVK Terms](https://ovk.to/terms)