updated iframe to allow fullscreen

src/components/SpeakerDeck.tsx

@@ -14,7 +14,7 @@ const SpeakerDeck = ({ title, src }: SpeakerDeckProps): React.JSX.Element => {
   return (
     <StyledDiv>
       <SpeakerDeckTitle>{title}</SpeakerDeckTitle>
-      <SpeakerDeckIFrame src={src}></SpeakerDeckIFrame>
+      <SpeakerDeckIFrame src={src} allow="fullscreen"></SpeakerDeckIFrame>
     </StyledDiv>
   )
 }