README.md in rspeed-0.5.1 vs README.md in rspeed-0.5.2

@@ -28,10 +28,9 @@
 
 - `RSPEED_NAME`: You app name to avoid data override
 - `RSPEED_PIPE`: Current pipe
 - `RSPEED_PIPES`: Quantity of pipes
 - `RSPEED_RESULT_KEY`: The key that keeps the final result of all pipes
-- `RSPEED_TMP_KEY`: The temporary key that keeps the partial result of the pipes
 - `RSPEED`: Enables RSpeed
 
 ```sh
 RSPEED=true RSPEED_NAME=authorizy RSPEED_PIPE=1 RSPEED_PIPES=3 bundle exec rake rspeed:run
 ```