prevent stdout from tar, feed executable shell args, add sh passthrough in README

.gitignore

@@ -1 +1,4 @@
-/target
+/target
+*.tar.gz
+*.zip
+spotify-quickauth

README.md

@@ -9,7 +9,7 @@ You can install this application, but most people will just need it once. The fo
 For Linux and macOS, you can paste this command into your terminal:
 
 ```bash
-curl -sSL https://xevion.github.io/spotify-quickauth/run.sh | sh
+curl -sSL https://xevion.github.io/spotify-quickauth/run.sh | sh -s --
 ```
 
 For Windows, you can paste this command into PowerShell:

run.sh

@@ -29,8 +29,8 @@ fi
 
 EXECUTABLE="spotify-quickauth"
 curl -Lso $EXECUTABLE.tar.gz $DOWNLOAD_URL
-tar -xvf $EXECUTABLE.tar.gz $EXECUTABLE
+tar -xvf $EXECUTABLE.tar.gz $EXECUTABLE 1>/dev/null
 rm $EXECUTABLE.tar.gz
 chmod +x $EXECUTABLE
 trap "rm -f $EXECUTABLE" INT EXIT
-./$EXECUTABLE
+./$EXECUTABLE $@