created env example file

SearXNG/.env.example

@@ -0,0 +1,11 @@
+# Docker image tag to use for the SearXNG container
+# See available tags at: https://hub.docker.com/r/searxng/searxng/tags
+SEARXNG_VERSION=latest
+
+# Linux username whose home directory holds the SearXNG config and cache volumes
+# Config:  /home/<SEARXNG_USERNAME>/searxng/config
+# Cache:   /home/<SEARXNG_USERNAME>/searxng/cache
+SEARXNG_USERNAME=searxng
+
+# Host port to expose SearXNG on (maps to container port 8080)
+SEARXNG_PORT=8080