Modifying README file (#3483)

Signed-off-by: Alen Abeshov <[email protected]>
Co-authored-by: Alen Abeshov <[email protected]>

docker/README.md

@@ -8,10 +8,10 @@ We build, assemble, and test our artifacts on docker containers. All of our pipe
 
 ### Build CI Runner Docker Image from Dockerfile
 
-If you only want to build the docker image for either x64 or arm64, run this on a x64 or arm64 host respectively:
+To build the docker image for either x64 or arm64, run the below command on a x64 or arm64 host respectively within the `opensearch-build/docker/ci` folder:
 
 ```bash
-docker build -f ./docker/ci/dockerfiles/integtest-runner.al2.dockerfile . -t <Docker Hub RepoName>/<Docker Image Name>:<Tag Name>
+docker build -f ./dockerfiles/integtest-runner.al2.dockerfile . -t <Docker Hub RepoName>/<Docker Image Name>:<Tag Name>
 ```
 
 If you want to build multi-arch docker image for both x64 and arm64, make sure you are using Docker Desktop.