Fix readme typo (sindresorhus#565)

ferdicus · web-flow · commit 5689d51ed1e7 · 2020-10-03T02:45:37.000+02:00
diff --git a/readme.md b/readme.md
@@ -284,7 +284,7 @@ If you're running into other issues when using SSH, please consult [GitHub's sup
 
 ### I get an error when publishing my package through Yarn
 
-If you an error like this…
+If you get an error like this…
 
 ```shell
 ❯ Prerequisite check
