Update index.md

docs/backdrop/index.md

@@ -7,7 +7,7 @@
 
 ??? tldr "Alternative: Civibuild for developers"
 
-    If you plan to develop patches for CiviCRM on WordPress, then please read the [Developer Guide](https://docs.civicrm.org/dev/en/latest) for information about [Buildkit](https://docs.civicrm.org/dev/en/latest/tools/buildkit/) and [civibuild](https://docs.civicrm.org/dev/en/latest/tools/civibuild/).
+    If you plan to develop patches for CiviCRM on Backdrop, then please read the [Developer Guide](https://docs.civicrm.org/dev/en/latest) for information about [Buildkit](https://docs.civicrm.org/dev/en/latest/tools/buildkit/) and [civibuild](https://docs.civicrm.org/dev/en/latest/tools/civibuild/).
 
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 ## Get the code {:#download}