diff --git a/docs/image-20210720174028863.png b/docs/Open-IM-Servers-on-System.png similarity index 100% rename from docs/image-20210720174028863.png rename to docs/Open-IM-Servers-on-System.png diff --git a/docs/Open-IM-Servers-on-docker.png b/docs/Open-IM-Servers-on-docker.png new file mode 100644 index 000000000..e69de29bb diff --git a/docs/image-20210720174158535.png b/docs/image-20210720174158535.png deleted file mode 100644 index ae4bcd85c..000000000 Binary files a/docs/image-20210720174158535.png and /dev/null differ