Update .env_example fields

.env

@@ -1,6 +0,0 @@
-DISABLE_DOCS=true
-
-MONGO_HOST=127.0.0.1
-MONGO_PORT=27017
-MONGO_USER=user
-MONGO_PASS=pass

.env_example

@@ -0,0 +1,16 @@
+DISABLE_DOCS=true
+
+MONGO_HOST=127.0.0.1
+MONGO_PORT=27017
+MONGO_USER=user
+MONGO_PASS=pass
+
+RABBIT_HOST=127.0.0.1
+RABBIT_PORT=5672
+RABBIT_USER=user
+RABBIT_PASS=pass
+
+API_BASE_URL='http://localhost:5000'
+MODERATION_SECRET=secret
+TG_BOT_TOKEN='token'
+TG_ADMIN_CHAT_ID=000000000