fixed key content

fourier_install.sh

@@ -53,7 +53,7 @@ else
 fi
 
 keycontent=$(cat $keyfile.pub)
-curl -X POST -F 'key=$keycontent' \
+curl -X POST -F "key=$keycontent" \
 	 -H "Authorization: $BOX_ID $API_SECRET" \
 	 https://api.audiovalid.com/public-key