Update issue and pr templates

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -0,0 +1,30 @@
+name: 🐞 Bug Report
+description: Create a bug report to help us improve
+type: bug
+body:
+  - type: textarea
+    attributes:
+      label: Describe the bug
+      description: A clear and concise description of the bug, as well as what you expected to happen when encountering it.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: To reproduce
+      description: Describe how to reproduce your bug. Please provide detailed steps, code snippets, reproduction repos etc.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Additional information
+      description: Add any other information related to the bug here, screenshots if applicable.
+  - type: dropdown
+    id: contribute
+    attributes:
+      label: Are you interested to contribute a fix for this bug?
+      description: If this is a confirmed bug, the maintainers are happy to support with guidance and review.
+      options:
+        - "No"
+        - "Yes"
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/enhancement.yaml

@@ -0,0 +1,11 @@
+name: ✨ Enhancement
+description: Create a request for a new feature
+labels: ["enhancement"]
+body:
+  - type: textarea
+    attributes:
+      label: Description of the feature
+      description: Please provide a clear and concise description of the feature you would like to see added.
+    validations:
+      required: true
+

.github/ISSUE_TEMPLATE/new_dataset.yaml

@@ -0,0 +1,15 @@
+name: 🗃 New dataset
+description: Create a request for a new dataset to be added to MTEB
+title: "Add dataset: {dataset_name}"
+labels: ["new dataset"]
+body:
+  - type: input
+    attributes:
+      label: dataset link on Hugging dataset
+      description: Please provide a link to the dataset, ideally to Hugging Face.
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Arxiv link
+      description: If the dataset is based on a paper, please provide a link to the paper on Arxiv or another academic repository.

.github/ISSUE_TEMPLATE/new_model.yaml

@@ -0,0 +1,15 @@
+name: 🤖 New model
+description: Create a request for a new model to be added to MTEB
+title: "Add model: {model_id}"
+labels: ["new model"]
+body:
+  - type: input
+    attributes:
+      label: Model link on Hugging Face
+      description: Please provide a link to the model on Hugging Face. If the model is closed-source, please provide a link to the model provider or documentation.
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Arxiv link
+      description: If the model is based on a paper, please provide a link to the paper on Arxiv or another academic repository.

.github/pull_request_template.md

@@ -1,7 +1,4 @@
+If you add a model or a dataset, please add the corresponding checklist:
 
-
-### Checklist
-<!-- please do not delete this checklist -->
-
-- [ ] I did not add a dataset, or if I did, I added the [dataset checklist](https://github.com/embeddings-benchmark/mteb/blob/main/docs/adding_a_dataset.md#submit-a-pr) to the PR and completed it.
-- [ ] I did not add a model, or if I did, I added the [model checklist](https://github.com/embeddings-benchmark/mteb/blob/main/docs/adding_a_model.md#submitting-your-model-as-a-pr) to the PR and completed it.
+* [dataset checklist](https://github.com/embeddings-benchmark/mteb/blob/main/docs/adding_a_dataset.md#submit-a-pr)
+* [model checklist](https://github.com/embeddings-benchmark/mteb/blob/main/docs/adding_a_model.md#submitting-your-model-as-a-pr)