Upload Technical_Execution.md

Update Ethnics file

File rename

Renamed file

Update README with executive summary and error analysis

Fixed schema conflict in dataset viewer by adding multiple configs

Added execution scripts for data preparation, model transcription, and WER scoring

Added WER evaluation scores and summaries for Hausa, Igbo, Pidgin, and Yoruba

Add project documentation, Colab runbook, and ethics statement

initial commit