Merge "Fix common misspellings"

doc/source/support-matrix.ini

@@ -354,7 +354,7 @@ status=optional
 notes=Provides a mechanism to re(set) the password of the administrator
   account insider the instance operating system. This requires that the
   hypervisor have a way to communicate with the running guest operating
-  system. Given the wide range of operating systems in existance it is
+  system. Given the wide range of operating systems in existence it is
   unreasonable to expect this to be practical in the general case. The
   configdrive and metadata service both provide a mechanism for setting
   the administrator password at initial boot time. In the case where this
@@ -437,7 +437,7 @@ notes=The swap volume operation is a mechanism for changing running
   instance so that its attached volume(s) are backed by different
   storage in the host. An alternative to this would be to simply
   terminate the existing instance and spawn a new instance with the
-  new storage. IOW this operation is primarily targetted towards
+  new storage. IOW this operation is primarily targeted towards
   the pet use case rather than cattle. Therefore this is considered
   optional to support
 driver-impl-xenserver=missing
@@ -558,7 +558,7 @@ notes=This allows for the end user to provide data for multiple
   is booted. This requires that the compute node understand the
   format of the filesystem and any partitioning scheme it might
   use on the block device. This is a non-trivial problem considering
-  the vast number of filesystems in existance. The problem of injecting
+  the vast number of filesystems in existence. The problem of injecting
   files to a guest OS is better solved by obtaining via the metadata
   service or config drive. Therefore this operation is considered
   optional to support.