fix v7 page

Author: xanhacks

content/events/heroctf-v7.md

@@ -21,16 +21,19 @@ our_team:
   description: ""
   team:
   - name: "Dataflow Security"
-    image: "images/brands/TODO.png"
+    image: "images/brands/logo-dfsec.png"
     designation: "Pro Sponsor"
+  - name: "EPIEOS"
+    image: "images/brands/logo-epieos.png"
+    designation: "Basic Sponsor"
   - name: "Synacktiv"
     image: "images/brands/logo-synacktiv.jpg"
     designation: "Basic Sponsor"
   - name: "DGA-MI"
     image: "images/brands/logo-dga.png"
     designation: "Basic Sponsor"
   - name: "Ackuracy"
-    image: "images/brands/TODO.png"
+    image: "images/brands/logo-ackuracy.png"
     designation: "Basic Sponsor"
   - name: "AKAILABS"
     image: "images/brands/logo-akailabs.png"