Document more alternatives

[bollwyvl]

Collecting some thoughts here of other alternatives to mention. They should at least support lab 3 to be recommended.

package	url	lab 3	conda-forge
datagrid	ipydatagrid	✔️	✔️
datagrid	ipyregulartable	✔️	✔️
datagrid	ipyaggrid	❔	❔

[timkpaine]

qgrid and ipysheet both have lab3 and conda forge

[bollwyvl]

mmm... have been bitten by qgrid, can't really recommend. but yeah, ipysheet's been pretty good.

[timkpaine]

If you're evaluating good vs bad, aggrid has a bunch of features gated by a license and ipysheet's performance is very bad for big data sets, but it's the only one I believe that can embed other widgets in the cells.