Added more docker servers as reference

Docker/servers/gopls/docker_entrypoint.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+set -eu pipefail
+
+LSPCONTAINERS_GROUP=$(id -g)
+LSPCONTAINERS_USER=$(id -u)
+
+sudo usermod -u $LSPCONTAINERS_USER lspcontainers \
+    && sudo groupmod -g $LSPCONTAINERS_GROUP lspcontainers || true \
+    && exec "gopls"