udpate installation command

dashboard/src/main/home/modals/ClusterInstructionsModal.tsx

@@ -31,7 +31,7 @@ export default class ClusterInstructionsModal extends Component<PropsType, State
             1. To install the Porter CLI, first retrieve the latest binary:
             <Code>
               &#123;<br />
-              name=$(curl -s https://api.github.com/repos/porter-dev/porter/releases/latest | grep "browser_download_url.*_Darwin_x86_64\.zip" | cut -d ":" -f 2,3 | tr -d \")<br />
+              name=$(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 \")<br />
               name=$(basename $name)<br />
               curl -L https://github.com/porter-dev/porter/releases/latest/download/$name --output $name<br />
               unzip -a $name<br />