Prune 4,546 figure to avoid confusion with malware-family count

README.md

@@ -38,8 +38,9 @@ This is a cleaned, machine-readable export of MITRE's public STIX bundle — use
 
 ## Coverage
 
-- 189 groups, 4,546 group-technique associations (~24 techniques/group on average)
+- 189 named MITRE ATT&CK groups, each mapped to its techniques and software (~24 techniques per group on average)
 - Sourced from MITRE ATT&CK's public Enterprise STIX bundle
+- Distinct from RelayShield's separate malware-family taxonomy (sourced from Malpedia + MITRE Software, not part of this dataset) — this file covers threat *groups* and their techniques only, not malware families
 
 ## Source & maintenance