Merge commit '824c2c00d9d034089dbe687cacc3c05cb064f8bd'

fix #25

version

update readme

Make pause in background as option;

Fix cascade order issue

Fallback to network when fetch cache missing

Fix index tab toggle

Adjust viewport fit

Merge branch 'master' into beta

add fallback css color

fix wake lock for read

fix npe

WakeLock support on iOS 18.4 is fixed. We should enable this feature on target platform.

Fix incorrect read jump position when switch to another text