x/blog: fix link to survey 2019 results

Change-Id: I6bd07ae9fd818845e0e9486252a3ce1caaf2af29
Reviewed-on: https://go-review.googlesource.com/c/blog/+/300709
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/content/survey2020-results.article b/content/survey2020-results.article
index 96a9dcc..2c1861d 100644
--- a/content/survey2020-results.article
+++ b/content/survey2020-results.article
@@ -8,7 +8,7 @@
 
 ## Thank you for the amazing response!
 
-In 2020, we had another great turnout with 9,648 responses, about [as many as 2019](https://blog.golang.org/survey2020-results). Thank you for putting in the time to provide the community with these insights on your experiences using Go!
+In 2020, we had another great turnout with 9,648 responses, about [as many as 2019](https://blog.golang.org/survey2019-results). Thank you for putting in the time to provide the community with these insights on your experiences using Go!
 
 ## New modular survey design