Expected output for Exercise 4 in Language Tutorials

[sariyuce]

I guess the expected output must be \"Denise\", \"Paras\" here, not \"Hank\", \"Denise\", \"Paras\" because \"Hank\" is a friend of \"Dave\" as noted in the Exercise 1.

graph-notebook/src/graph_notebook/notebooks/04-Language-Tutorials/01-Gremlin/01-Basic-Read-Queries.ipynb

Line 1041 in fb66141

"The correct answer contains three results: \"Hank\", \"Denise\", \"Paras\""

Same example is used for openCypher here, so it needs to be fixed too:

graph-notebook/src/graph_notebook/notebooks/04-Language-Tutorials/02-openCypher/01-Basic-Read-Queries.ipynb

Line 842 in fb66141

"The correct answer contains three results: \"Hank\", \"Denise\", \"Paras\""