Download the file as zip Extract the files in a folder.

Go to your Chrome browser and open extensions.
Turn on the developers mode and click on load unpacked.
Choose the folder you have extracted the files .

And you are good to go .......

-------------------About the extension-------------------
You have 3 buttons

Save input - To save the website you inserted in the text field. (on single click)

Save tab - To save the link of the current tab (on single click)

Delete All - delete all saved links (on double click)

Click on the links to open in new tab