docs: Update README with new website link and replace image URLs with…

… local paths

README.md

@@ -13,7 +13,7 @@
 
 > Software to enroll in available Udemy Paid/Free courses having coupons automatically to your Udemy account.
 
-Everything you need can be on the website.: [duce.techtanic.space](https://duce.techtanic.space)
+Everything you need can be on the website: https://techtanic.github.io/duce/
 
 ## Key Features
 
@@ -51,21 +51,19 @@ Everything you need can be on the website.: [duce.techtanic.space](https://duce.
 <h2><details>
 <summary>Screenshots of GUI</summary>
 
-![Login](https://cdn.discordapp.com/attachments/823472016999972884/834051177792274452/unknown.png)
+![Login](/extra/gui-login.png)
 
-![Cookie Login](https://cdn.discordapp.com/attachments/823472016999972884/834051201342373888/unknown.png)
+![Discounted Udemy Course Enroller](/extra/gui-main.png)
 
-![Discounted Udemy Course Enroller](https://cdn.discordapp.com/attachments/823472016999972884/834051568554737674/unknown.png)
+![Coupon Scraping](/extra/gui-scraping.png)
 
-![Coupon Scraping](https://cdn.discordapp.com/attachments/823472016999972884/834051762255560704/unknown.png)
-
-![Enrolling](https://cdn.discordapp.com/attachments/823472016999972884/824187751075282974/unknown.png)
+![Enrolling](/extra/gui-enrolling.png)
 
 </details>
 
 ## Disclaimer
 
-![](https://cdn.discordapp.com/attachments/749247352073617518/785906195767754753/unknown.png)
+![](/extra/disclaimer.png)
 
 ## Donate