rewrite repo location urls

plugins/welcome/src/components/WelcomePage/WelcomePage.tsx

@@ -69,7 +69,7 @@ const WelcomePage = () => {
                   of these phases. The best way to keep track of the progress is
                   through the 
                   <Link
-                    href="https://github.com/spotify/backstage/milestones"
+                    href="https://github.com/backstage/backstage/milestones"
                     rel="noopener noreferrer"
                   >
                     Milestones
@@ -116,7 +116,7 @@ const WelcomePage = () => {
               <Typography variant="body1" paragraph>
                 We suggest you either check out the documentation for{' '}
                 <Link
-                  href="https://github.com/spotify/backstage/blob/master/docs/plugins/create-a-plugin.md"
+                  href="https://github.com/backstage/backstage/blob/master/docs/plugins/create-a-plugin.md"
                   rel="noopener noreferrer"
                 >
                   creating a plugin
@@ -127,7 +127,7 @@ const WelcomePage = () => {
                 </Link>{' '}
                 in the directory{' '}
                 <Link
-                  href="https://github.com/spotify/backstage/tree/master/plugins"
+                  href="https://github.com/backstage/backstage/tree/master/plugins"
                   rel="noopener noreferrer"
                 >
                   <code>plugins/</code>
@@ -144,7 +144,7 @@ const WelcomePage = () => {
                 </ListItem>
                 <ListItem>
                   <Link
-                    href="https://github.com/spotify/backstage/blob/master/docs/plugins/create-a-plugin.md"
+                    href="https://github.com/backstage/backstage/blob/master/docs/plugins/create-a-plugin.md"
                     rel="noopener noreferrer"
                   >
                     Create a plugin