Add forgotten file

Author: jakubbalas

src/sections/cfp_closed.tsx

@@ -0,0 +1,13 @@
+import { Box, Container, Heading, Paragraph } from "theme-ui";
+
+import { ContentButton } from "~/components/header";
+
+export const CFP_Closed = () => (
+  <Container id="cfp" variant="smallContainer">
+    <Heading>Proposals submission is now closed</Heading>
+    <Paragraph>
+      We would like to thank everyone who submitted their proposals! We are now compiling the final version of the event schedule.
+    </Paragraph>
+
+  </Container>
+);