[FIX] Broken Link to Setup Fixed

Don't need relative path if in same dir, so updated to just filename :)

Author: Sandeepsuresh1998

docs/getting-started/introduction.mdx

@@ -41,4 +41,4 @@ interpreter
   </Step>
 </Steps>
 
-We've also developed [one-line installers](/getting-started/setup) that install Python and set up Open Interpreter.
+We've also developed [one-line installers](setup.mdx) that install Python and set up Open Interpreter.