Update README.md

README.md

@@ -47,7 +47,7 @@ Run the following command to grab the latest binary:
 
 ```sh
 {
-name=$(curl -s https://api.github.com/repos/porter-dev/porter/releases/latest | grep "browser_download_url.*porter_.*_Darwin_x86_64\.zip" | cut -d ":" -f 2,3 | tr -d \")
+name=$(curl -s https://api.github.com/repos/porter-dev/porter/releases/latest | grep "browser_download_url.*/porter_.*_Darwin_x86_64\.zip" | cut -d ":" -f 2,3 | tr -d \")
 name=$(basename $name)
 curl -L https://github.com/porter-dev/porter/releases/latest/download/$name --output $name
 unzip -a $name