github xdg open postman code example

Example: github xdg open postman

**For Ubuntu 18.04 or 20.4 users.** 
When a browser sends a command to xdg-open fails by "?" character.
Thus, you can [test](https://documenter.getpostman.com/view/631643/JsLs/?version=latest)  this in your terminal

1. (This happens) The browser sends a raw request to xdg-open
```
xdg-open postman://app/collections/import/631643-dac5eac9-148d-a32e-b76b-3edee9da28f7-JsLs?referrer=https%3A%2F%2Fdocumenter.getpostman.com%2Fview%2F631643%2FJsLs%2F%3Fversion%3Dlatest&versionTag=latest#
```
2. (This should happens)  xdg-open command doesn't wait "?", then "'\\?"
```
xdg-open postman://app/collections/import/631643-dac5eac9-148d-a32e-b76b-3edee9da28f7-JsLs\?referrer=https%3A%2F%2Fdocumenter.getpostman.com%2Fview%2F631643%2FJsLs%2F%3Fversion%3Dlatest&versionTag=latest#\?
```

I don't know why this works. But it works for me.