Fix minor typos in bokeh server docs
@@ -455,11 +455,11 @@ below:
from tornado import gen
- # this must only be modified from a Bokeh session allback
+ # this must only be modified from a Bokeh session callback
source = ColumnDataSource(data=dict(x=[0], y=[0]))
# This is important! Save curdoc() to make sure all threads
- # see then same document.
+ # see the same document.
doc = curdoc()
@gen.coroutine
