fixed .env.example, added auto-generate rcon_password and other vars

start.sh

@@ -4,9 +4,10 @@ cd /hlds
 
 ./hlds_run \
     -game cstrike \
-    +maxplayers ${MAXPLAYERS:-16} \
-    +map ${MAP:-de_dust2} \
-    +sv_lan 0 \
-    +rcon_password ${RCON_PASSWORD:-changeme} \
-    -port ${PORT:-27015} \
-    -${VAC:-insecure}
+    -console \
+    -port "$PORT" \
+    +map "$MAP" \
+    +maxplayers "$MAX_PLAYERS" \
+    +sv_lan "$SV_LAN" \
+    +rcon_password "$RCON_PASSWORD" \
+    -${VAC:+-VAC}