Fix typo

We caught a typo!

app/century-scale-storage/index.html

@@ -392,7 +392,7 @@ <h2>The Building by the Plum Orchard</h2>
                     close enough that all context does not collapse. It is survival from the end of the Napoleonic Wars
                     to the beginning of World War I, from the invention of the shortwave radio to the age of Facebook,
                     from the reign of King Henry V to Martin Luther publishing his Ninety-five Theses, from the first
-                    performance of Igor Stravinsky’s Rites of Spring to the release of Daft Punk’s final album, from the
+                    performance of Igor Stravinsky’s Rite of Spring to the release of Daft Punk’s final album, from the
                     Battle of Gettysburg to the signing of the Partial Nuclear Test Ban Treaty, from the patenting of
                     the telephone to the release of the Apple I. We picked a century scale because most physical objects
                     can survive 100 years in good care. It is attainable, and yet we selected it because the design of