Benchmark: Fix minor grammar mistakes in ReadMe
@@ -62,4 +62,4 @@ benchmark_plugingetset <path> <parent> <plugin> [get]
and calls the `get` method of plugin `<plugin>` on this file with parent Key `<parent>`. Lastly it calls the `set` method of `<plugin>`
on the file `test.<plugin>.out` with parent Key `<parent>`, if you did not specify `get` as fourth argument.
-`benchmark_plugingetset` can used with `time` (or similar programs) compare the speed of two (or more) storage plugins for specific files.
+`benchmark_plugingetset` can be used with `time` (or similar programs) to compare the speed of two (or more) storage plugins for specific files.
