Fix typos in README

1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index cb25b32..81e90c0 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,7 @@ location /external_api.js {
 }
 ```
 
-The following additional HTTP header are known not work with the Electron App:
+The following additional HTTP headers are known not to work with the Electron App:
 
 ```
 Content-Security-Policy "frame-ancestors 'none'";