Make footer links open in new tab

Author: PrinceSumberia

src/components/Footer.js

@@ -10,18 +10,24 @@ class Footer extends Component {
       <footer className={classes.footer}>
         <a
           href="https://github.com/PrinceSumberia/covid-19-tracker"
+          target="_blank"
+          rel="noopener noreferrer"
           className={classNames(classes.btn, classes.github)}
         >
           Contribute on Github
         </a>
         <a
           href="https://twitter.com/intent/tweet?text=Get the latest Covid-19 updates with Covid-19 India Tracker!&url=https://covidindiatracker.netlify.app/"
+          target="_blank"
+          rel="noopener noreferrer"
           className={classNames(classes.btn, classes.twitter)}
         >
           Share on Twitter
         </a>
         <a
           href="https://github.com/PrinceSumberia/covid-19-tracker/issues/new"
+          target="_blank"
+          rel="noopener noreferrer"
           className={classNames(classes.btn, classes.issue)}
         >
           Report an Issue