PgBackRest Wrapper script move

ReadMe.md

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+# PgBackRest backup wrapper
+
+Wrapper to call the full/differential backup on all stanzas
+
+> [!notice]
+> Currently all stanzas are hardoded, this should change
+
+## Options
+
+```txt
+-b (backuptype): full/diff
+-s (stanza): override stanza name, must be in list
+-l list available stanza
+-t test run
+```
+
+Either `-l` or `-b` option must be set