Chain Duck per ryosuke ohta

# Description
* Push the icon, it opens the popup window.
* Retrieve the URL of the active tab, and display the search result of Twitter.
* There are exceptions by domain, but as a rule delete the get parameter of the URL and search it.
* It detects the change and update of the tab.
* It does not follow the setting screen, home screen, search screen of major search sites.

# Release note
https://github.com/ryosuke0920/Chain-Duck/releases

# Contact
ryosuke.ohta.programmer@gmail.com
Ryosuke Ohta

# License
This software is released under the MIT License.
https://opensource.org/licenses/MIT