Rewrite sentence about type indexes (#11)

index.html

@@ -1589,11 +1589,11 @@ <h2>Discovery</h2>
             <p>The RDF class used to register an instance of a chat chanel
                is <code>meeting:LongChat</code><div class="
               The <a href="#bib-type-indexes">Type Indexes</a> may be used with that Class to create
-              to make a person note of the fact that the Chat to find it later, a similar note 
+              a personal note of the Chat to find it later, a similar note 
               but shared with others in a community, or a public note, in which case 
-              systems displaying their profile will typically allow other to find the chat.
+              systems displaying their profile will typically allow others to find the chat.
             </p></p> To make a link to a chat, one does not have to be the owner of it,
-            or a participant.   The access control does not have to match: it is possible to
+            or a participant.  The access control does not have to match: it is possible to
             have a private link to a public resource and vice-versa.
 
               </p>