Update README.md

Author: euiyounghwang

README.md

@@ -46,7 +46,7 @@ docker run --name es8-run --network bridge -p 9209:9200 -p 9114:9114 -p 9309:930
 
 
 #### Run Local Environment
-- It will be validate the status of elasticsearch cluster using `./wait_fo_es.sh` and `./DevOps_Shell/read_config.sh` for reading es host value in `./config.yaml` automatically when running `./service_start.sh` script.
+- It will be validate the status of elasticsearch cluster using `./wait_for_es.sh` and `./DevOps_Shell/read_config.sh` for reading es host value in `./config.yaml` automatically when running `./service_start.sh` script.
 ```bash
 source .venv/bin/activate
 (.venv) ➜  python-elasticsearch git:(master) ✗ ./service_start.sh