Add license information: deepseek
#1964
by SDCZX123WESWX - opened
Adds a License section to the dataset README. The license is deepseek, inherited from the direct data source (HuggingFaceTB/smollm-corpus) or the model used for synthesis (DeepSeek-V2.5).
This PR adds the license information for the dataset. The license is determined based on the direct data source (HuggingFaceTB/smollm-corpus, odc-by for the Raw dataset) or the model used for synthesis (DeepSeek-V2.5 for the processed dataset). Please review and merge.