Update installation one-liner

Author: olaurendeau

README.md

@@ -6,15 +6,13 @@ Tail messages from a RabbitMQ exchange into your CLI console
 ## Linux
 
 ```bash
-curl -O -J -L https://github.com/olaurendeau/tailmq/releases/download/v1.0.0/tailmq-linux-amd64
-mv tailmq-linux-amd64 /usr/local/bin/tailmq
+curl -O -J -L https://github.com/olaurendeau/tailmq/releases/download/v1.0.0/tailmq-linux-amd64 && mv tailmq-linux-amd64 /usr/local/bin/tailmq && chmod +x /usr/local/bin/tailmq
 ```
 
 ## MacOS
 
 ```bash
-curl -O -J -L https://github.com/olaurendeau/tailmq/releases/download/v1.0.0/tailmq-darwin-amd64
-sudo mv tailmq-darwin-amd64 /usr/local/bin/tailmq
+curl -O -J -L https://github.com/olaurendeau/tailmq/releases/download/v1.0.0/tailmq-darwin-amd64 && mv tailmq-darwin-amd64 /usr/local/bin/tailmq && chmod +x /usr/local/bin/tailmq
 ```
 
 # Usage examples