Kanister docs correct argument DeleteData (#779)

* Kanister docs correct argument DeleteData

See https://github.com/kanisterio/kanister/blob/ea72b13de3631fce145629b4acac72871f3c4bfe/pkg/function/delete_data.go#L42

* Add backupIdentifier to wordlist

Co-authored-by: Pavan Navarathna <pavan@kasten.io>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

docs/functions.rst

@@ -597,8 +597,8 @@ This function deletes the snapshot data backed up by the BackupData function.
 
    `namespace`, Yes, `string`, namespace in which to execute
    `backupArtifactPrefix`, Yes, `string`, path to the backup on the object store
-   `backupIdentifier`, No, `string`, (required if backupTag not provided) unique snapshot id generated during backup
-   `backupTag`, No, `string`, (required if backupIdentifier not provided) unique tag added during the backup
+   `backupID`, No, `string`, (required if backupTag not provided) unique snapshot id generated during backup
+   `backupTag`, No, `string`, (required if backupID not provided) unique tag added during the backup
    `encryptionKey`, No, `string`, encryption key to be used during backups
    `podOverride`, No, `map[string]interface{}`, specs to override default pod specs with
 

docs/spelling_wordlist.txt

@@ -2,6 +2,7 @@ actionset
 args
 aws
 backupIdentifier
+backupID
 backupInfo
 backupTag
 boolean