change sign on bins

docs/decision-tree-refactored.md

@@ -163,7 +163,7 @@ Use this [checklist](./checklist-cani.md) to keep track of your answers to the q
  <details>
   <summary>Have "indirect identifiers" such as age, gender, handedness or disease status been protected?</summary><br>
 
-  Consider combining "indirect identifiers" ([CUREC BPG 09](https://researchsupport.admin.ox.ac.uk/files/bpg09datacollectionandmanagementpdf)) into bins such that no participant can be uniquely identified. Ideally bins should contain < 5 participants.
+  Consider combining "indirect identifiers" ([CUREC BPG 09](https://researchsupport.admin.ox.ac.uk/files/bpg09datacollectionandmanagementpdf)) into bins such that no participant can be uniquely identified. Ideally bins should contain n > 5 participants.
  </details>
 
  <details>