Fix typo in Spaces Overview. (#1153)

docs/hub/spaces-overview.md

@@ -78,7 +78,7 @@ If you want to duplicate a Space, you can click the three dots at the top right
 
 * Owner: The duplicated Space can be under your account or any organization in which you have write access
 * Space name
-* Visiblity: The Space is private by default. Read more about private repositories [here](./repositories-settings#private-repositories). 
+* Visibility: The Space is private by default. Read more about private repositories [here](./repositories-settings#private-repositories). 
 * Hardware: You can choose the hardware on which the Space will be running. Read more about hardware upgrades [here](./spaces-gpus.md).
 * Storage: If the original repo uses persistent storage, you will be prompted to choose a storage tier. Read more about persistent storage [here](./spaces-storage.md).
 * Secrets and variables: If the original repo has set some secrets and variables, you'll be able to set them while duplicating the repo.