Documentation and tutorial enhancements

[lxy2304]

Tutorial sample code and output.csv:

• Modify queries in sample code to add ordering in the output CSV for easier comparison.

Tutorial documentations:

• Code snippets: Modify code snippets to reflect changes on sample code.
• Locations hint for Praat executable: Update Tutorials 4 and 5 to include hints on locating the Praat executable.
• Tutorials 4/5: Encounter an EOFERROR without adding [if name == 'main':]. Update the documentation to include this.