Add persistence in single node

build-docker-images/README.md

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+# Wazuh Docker Image Builder
+
+By executing this stack, the Docker images of Wazuh manager, indexer and dashboard are created.
+This process can be used in case of any problem accessing the Docker images that are hosted on Docker Hub.
+
+To execute this process, the following command must be executed:
+
+```
+$ docker-compose up -d --build
+```
+
+Once the image creation process is finished, a Wazuh test stack will also be executed, which must be terminated with the following command:
+
+```
+$ docker-compose down
+```