Intro to DataLad notebook section 6 does not run completely on mybinder

[rly]

https://www.datalad.org/ links to a mybinder instance running the [Intro to DataLad notebook].(https://github.com/datalad/tutorials/blob/master/notebooks/intro_to_datalad.ipynb)

Section 6 of the notebook does not run completely because:

1. for the datalad run cell, pandas and other packages are not installed in the mybinder configuration
2. for the datalad rerun 71cb8c5 cell, I am stuck with the user prompt and cannot enter "yes" to proceed:

[INFO   ] run commit 71cb8c5; (analyze iris data...) 
[INFO   ] Making sure inputs are available (this may take some time) 
The authenticity of host 'github.com (140.82.121.4)' can't be established.ons/s]
ED25519 key fingerprint is SHA256:+DiY3wvvV6TuJJhbpZisF/zLDA0zPMSvHdkr4UvCOqU.
This key is not known by any other names.
Are you sure you want to continue connecting (yes/no/[fingerprint])? 

This is not a big deal, since I can see what was intended, but I am creating an issue for awareness.

[yarikoptic]

for the 1. - filed datalad/datalad-binder#10

for the 2. - filed adswa/myanalysis#12 for @adswa .

[jsheunis]

the binder instance has been updated: 65e0d62b78e7e5c988467e1d865f6af3d084dbfc