Update README.md

README.md

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----
-license: apache-2.0
----
+---
+license: apache-2.0
+task_categories:
+- text-generation
+- question-answering
+tags:
+- natural-language-processing
+- jsonl
+- nlp
+- qa
+- question-answering
+- questions-and-answers
+- gammacorpus
+- math
+pretty_name: GammaCorpus
+size_categories:
+- 1M<n<10M
+---
+
+# GammaCorpus: Math QA 2m
+
+## What is it?
+
+**GammaCorpus Math QA 2m** is a dataset that consists of 2,760,000 mathematical question-and-answer. It consists of 917,196 addition questions, 916,662 subtraction questions, 917,015 multiplication questions, and 9,126 division questions.
+
+## Dataset Summary
+
+- **Number of Rows**: 2,760,000
+- **Format**: JSONL
+- **Data Type**: Mathematical Question Pairs
+
+## Dataset Structure
+
+### Data Instances
+
+The dataset is formatted in JSONL, where each line is a JSON object representing a single question-answer pair. Below is an example:
+
+```jsonl
+{
+  "question": "108 - 924",
+  "answer": "-816"
+}
+{
+  "question": "62 + 578",
+  "answer": "640"
+}
+{
+  "question": "592 * 65",
+  "answer": "38480"
+}
+{
+  "question": "81 / 6",
+  "answer": "13.5"
+}
+```
+
+### Data Fields
+
+- **`question` (string)**: The math question to be answered.
+- **`answer` (string)**: The corresponding answer to the question.
+
+## Considerations for Using the Data
+
+### Limitations
+
+While this dataset is designed to minimise biases, the following considerations should be kept in mind:
+
+- Numbers of division questions rows are substantially lower than other question types.
+- The length and complexity of numbers are limited and larger, more complex queries are not supported.
+
+## Additional Information
+
+### Licensing Information
+
+The dataset is released under the **[Apache 2.0 License](https://www.apache.org/licenses/LICENSE-2.0)**. Please refer to the license for usage rights and restrictions.