Merge pull request #279 from gautierchomel/ONIX_fixes

Fix ONIX

UX-Guide-Metadata/draft/techniques/onix-metadata/index.html

@@ -323,7 +323,7 @@ <h4>Understanding the variables</h4>
 								<li><a href="https://ns.editeur.org/onix/en/196/20">code 20 of codelist 196</a> (Synchronised pre-recorded audio)</li>
 								<li><a href="https://ns.editeur.org/onix/en/175/A305">code A305 of codelist 175</a> (Synchronised audio)</li>
 							</ul>
-						<p>Otherwise, if false, it means that none of the metadata is not present.</p>
+						<p>Otherwise, if false, it means that none of the above metadata is present.</p>
 						<p>This indicates that text-synchronised pre-recorded audio narration (natural or synthesised voice) is included for substantially all textual matter, including all alternative descriptions, e.g. via a SMIL media overlay.</p>
 					</dd>
 					<dt><var>non_textual_content_audio</var></dt>
@@ -333,7 +333,7 @@ <h4>Understanding the variables</h4>
 							<li><a href="https://ns.editeur.org/onix/en/81/21">code 21 of codelist 81</a> (Partial performance – spoken word);</li>
 							<li><a href="https://ns.editeur.org/onix/en/81/22">code 22 of codelist 81</a> (Additional audio content not part of main content);</li>
 						</ul>
-						<p>Otherwise, if false, it means that none of the metadata is not present.</p>
+						<p>Otherwise, if false, it means that none of the above metadata is present.</p>
 						<p>This indicates that pre-recorded audio content is included as part of the work. It can be Audio recording of a reading, performance or dramatization of part of the work	or additional pre-recorded audio of any supplementary material such as full or partial reading, lecture, performance, dramatization, interview, background documentary or other audio content not included in the primary or unenhanced version</p>
 					</dd>
 					<dt><var>non_textual_content_audio_in_video</var></dt>					
@@ -347,7 +347,7 @@ <h4>Understanding the variables</h4>
 								<li><a href="https://ns.editeur.org/onix/en/81/27">code 27 of codelist 81</a> (Performance – visual);</li>
 								<li><a href="https://ns.editeur.org/onix/en/81/30">code 30 of codelist 81</a> (Additional video content not part of main work);</li>
 							</ul>
-							<p>Otherwise, if false, it means that none of the metadata is not present.</p>
+							<p>Otherwise, if false, it means that none of the above metadata is present.</p>
 							<p>This indicates that pre-recorded video including audio content is included as part of the work. It can be video recording of a reading, performance of part of the work or additional pre-recorded video of any supplementary material such as full or partial reading, lecture, performance, dramatization, interview, background documentary or other video containing audio content.</p>
 				</dl>
 				<h4>Variables setup</h4>