Set type of "affiliation" to Organization

To match codemeta.jsonld (which aliases it to http://schema.org/affiliation, which is defined as Organization).

Author: progval

content/terms.html

@@ -600,7 +600,7 @@ <h2>Terms from Schema.org</h2>
 affiliation
 </td>
 <td style="text-align:left;">
-Text
+Organization
 </td>
 <td style="text-align:left;">
 An organization that this person is affiliated with. For example, a school/university