Thanatat Tamtan

for anyone want to migrate from firebase auth.

- OnceChildAdded - OnceChildRemove - OnceChildChanged - OnceChildMoved

- Change function from `(chan *DataSnapshot) CancelFunc` to `(context.Context, func(*DataSnapshot))` - OnValue - OnChildAdded - OnChildRemoved - OnChildChanged - OnChildMoved --- implement with SSE first, in future may change to...

In JavaScript client `firebase.database().ref('data').on('value', () => {})` will cache data when call `firebase.database().ref('data').once('value').then(...)` will get data from cache Not sure if we need this in Go

not sure how to do this in server-side

[NEED HELP!] Documentation

7

I'm not a native English speaker. It's very hard for me to write doc in English.

add option to override template option ex. missingkey option

for use other template engine

add test for component render error