Update docs/proposal/20241003-data-disk-support.md

Co-authored-by: Lubomir I. Ivanov <[email protected]>

Author: vr4manta

docs/proposal/20241003-data-disk-support.md

@@ -88,7 +88,7 @@ CAPV will not be responsible for any custom mounting of the data disks.  CAPV wi
 
 #### For User Story 1
 
-CAPV will create the new disks for Control plane nodes during cluster creation.  
+CAPV will create the new disks for control plane nodes during cluster creation.  
 
 The new disks will be placed in the same location as the primary disk (datastore) and will use the controller as the primary disk.