(Emacs/init)~updated straight.el in bootstrap

The URL for bootstrap.el has changed as a result of straight now being
under a group rather than a user.  Just means I need to change it
here.  While doing so, I update the bootstrap version as well.

Emacs/.config/emacs/init.el

@@ -30,12 +30,15 @@
 ;; Straight
 (defvar bootstrap-version)
 (let ((bootstrap-file
-       (expand-file-name "straight/repos/straight.el/bootstrap.el" user-emacs-directory))
-      (bootstrap-version 5))
+       (expand-file-name
+        "straight/repos/straight.el/bootstrap.el"
+        (or (bound-and-true-p straight-base-dir)
+            user-emacs-directory)))
+      (bootstrap-version 7))
   (unless (file-exists-p bootstrap-file)
     (with-current-buffer
         (url-retrieve-synchronously
-         "https://raw.githubusercontent.com/raxod502/straight.el/develop/install.el"
+         "https://raw.githubusercontent.com/radian-software/straight.el/develop/install.el"
          'silent 'inhibit-cookies)
       (goto-char (point-max))
       (eval-print-last-sexp)))