diff --git a/README.md b/README.md
index 9833bc9..6521e53 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ This package is notification tools for Julialang.
    - desktop notification
    - sound notification
    - email notification
-   - say notification
+   - say notification (read given massage aloud)
  - Windows (Experimental)
    - desktop notification
    - sound notification
@@ -53,7 +53,7 @@ notify("calculation done", sound=true) # with sound
 notify("calculation done", sound="foo.wav") # specify a sound file
 alarm() # only sound. You can specify a sound file, alarm(sound="foo.wav")
 ```
-![Screenshot of a Notification](./docs/popup.png?raw=true)
+![Screenshot of a Notification](./docs/linuxpopup.png?raw=true)
 
 ### e-mail notification
 ```Julia
@@ -90,7 +90,7 @@ alarm() # only sound. You can specify a sound file, alarm(sound="foo.wav")
 say("Finish calculation!") # Read aloud
 ```
 
-![Screenshot of a Notification](./docs/screenshot.png?raw=true)
+![Screenshot of a Notification](./docs/macpopup.png?raw=true)
 
 Other supported parameters include `group` and `subtitle`.
 
diff --git a/docs/linuxpopup.png b/docs/linuxpopup.png
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diff --git a/docs/screenshot.png b/docs/macpopup.png
similarity index 100%
rename from docs/screenshot.png
rename to docs/macpopup.png
diff --git a/docs/popup.png b/docs/popup.png
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