README.md in benchmark_driver-0.10.11 vs README.md in benchmark_driver-0.10.12

@@ -83,10 +83,10 @@
         --rbenv [VERSIONS]           Ruby executables in rbenv (x.x.x,arg1,...;y.y.y,arg2,...;...)
         --repeat-count [NUM]         Try benchmark NUM times and use the fastest result (TODO)
         --bundler                    Install and use gems specified in Gemfile
         --filter [REGEXP]            Filter out benchmarks with given regexp
         --verbose [LEVEL]            Show some verbose outputs: 0, 1, 2 (default: 0)
-        --run-duration [SECONDS]     Warmup esitmates loop_count to run for this duration (default: 3)
+        --run-duration [SECONDS]     Warmup estimates loop_count to run for this duration (default: 3)
 ```
 
 #### Running single script
 
 With following `example_single.yml`,