Add permissions explaining

yrom · yrom · commit b46632cdb4f3 · 2017-12-06T14:58:56.000+08:00
Signed-off-by: yrom &lt;yrom@qq.com&gt;
diff --git a/docs/privacy.md b/docs/privacy.md
@@ -0,0 +1,11 @@
+Privacy Policy
+===
+
+This simple Privacy Policy explains what permissions this application needed in runtime.
+
+### Local storage ###
+This application need save the MP4 file, which captured screen, into  your storage device like SD card.
+
+### Audio Recording ###
+This application may record audio and encode it into the MP4 file what you wanted.
+
