Update README.md (facebook#3392)

Fixed a small grammatical issue that I noticed while browsing the README today
zmitry · Nov 2, 2017 · 3c26879 · 3c26879
1 parent 137f091
commit 3c26879
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/template/README.md b/template/README.md
@@ -911,7 +911,7 @@ REACT_APP_SECRET_CODE=abcdef
 
 `.env` files **should be** checked into source control (with the exclusion of `.env*.local`).
 
-#### What other `.env` files are can be used?
+#### What other `.env` files can be used?
 
 >Note: this feature is **available with `react-scripts@1.0.0` and higher**.