typo

Author: svgeesus

Implementation_Report_3e/index.html

@@ -1011,7 +1011,7 @@ <h3>Display-affecting metadata</h3>
                     </p>
 
                     <p>
-                        An online image 0ptimization tool, 
+                        An online image optimization tool, 
                         <a href="https://www.freeconvert.com/png-converter"><strong>PNG Converter</strong></a>,
                         optionally strips metadata to reduce filesize.
                         To avoid changing the orientation,