fix(docs): update go get command to include version path in README.md

Author: manu4543

README.md

@@ -59,7 +59,7 @@ Or to pin the version:
 <!-- x-release-please-start-version -->
 
 ```sh
-go get -u 'github.com/imagekit-developer/imagekit-go@v2.0.0'
+go get -u 'github.com/imagekit-developer/imagekit-go/v2@v2.0.0'
 ```
 
 <!-- x-release-please-end -->