Fix : meshcentral stage was not executable

README.md

@@ -21,7 +21,7 @@ vim config
 If you are on either Debian Buster or Ubuntu Xenial, you will need to install the
 [dependencies](#dependencies) below and run `./build.sh`.
 
-On other Linux distribution, you need to install Docker to build the image.
+On other Linux distributions, you need to install Docker to build the image.
 ```bash
 ./build-docker.sh
 ```