[MINOR:TYPO] Update spaces docs (#1649)

* [MINOR:TYPO] Update spaces-gpus.md

r/a paid Hardware/paid hardware

* [MINOR:TYPO] Update spaces-overview.md

r/a paid hardware/paid hardware

Author: cakiki

docs/hub/spaces-gpus.md

@@ -143,7 +143,7 @@ Do you have an awesome Space but need help covering the GPU hardware upgrade cos
 
 If your Space runs on the default `cpu-basic` hardware, it will go to sleep if inactive for more than a set time (currently, 48 hours). Anyone visiting your Space will restart it automatically.
 
-If you want your Space never to deactivate or if you want to set a custom sleep time, you need to upgrade to a paid Hardware.
+If you want your Space never to deactivate or if you want to set a custom sleep time, you need to upgrade to paid hardware.
 
 By default, an upgraded Space will never go to sleep. However, you can use this setting for your upgraded Space to become idle (`stopped` stage) when it's unused 😴. You are not going to be charged for the upgraded hardware while it is asleep. The Space will 'wake up' or get restarted once it receives a new visitor.
 

docs/hub/spaces-overview.md

@@ -107,7 +107,7 @@ If your Space needs to make any network requests, you can make requests through
 
 ## Lifecycle management
 
-On free hardware, your Space will "go to sleep" and stop executing after a period of time if unused. If you wish for your Space to run indefinitely, consider [upgrading to a paid hardware](./spaces-gpus). You can also manually pause your Space from the **Settings** tab. A paused Space stops executing until manually restarted by its owner.
+On free hardware, your Space will "go to sleep" and stop executing after a period of time if unused. If you wish for your Space to run indefinitely, consider [upgrading to paid hardware](./spaces-gpus). You can also manually pause your Space from the **Settings** tab. A paused Space stops executing until manually restarted by its owner.
 Paused time is not billed.
 
 ## Helper environment variables