[DOCS] Fix typo (#73444) (#73472)

Co-authored-by: Kevin Lowe <[email protected]>

Author: jrodewig

docs/reference/docs/reindex.asciidoc

@@ -304,7 +304,7 @@ POST _reindex?slices=5&refresh
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 // TEST[setup:my_index_big]
 
-You can also this verify works by:
+You can also verify this works by:
 
 [source,console]
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