Add another persona

wiki/src/donate.html

@@ -16,6 +16,8 @@
   <ul>
     <li><b>Journalists and whistleblowers</b> use Tails to denounce the
     wrongdoings of governments and corporations.</li>
+    <li><b>Activists</b> use Tails to avoid surveillance or organize
+    their struggles for liberatory social change.</li>
     <li><b>Human-rights defenders</b> use Tails to avoid censorship and
     report human-rights violations.</li>
     <li><b>Domestic violence survivors</b> use Tails to escape