Use yaml for issue templates + revamp (#5116)

* Convert issue templates to yaml

* Revamp issue templates

* Minor improvements

* Minor change

* Fix link

* Address review comment

* Revert + update link

Author: mariosasko

.github/ISSUE_TEMPLATE/add-dataset.md

@@ -0,0 +1,37 @@
+name: Add dataset
+description: Request the addition of a specific dataset to the Hub
+labels: ["dataset request"]
+body:
+  - type: input
+    id: name
+    attributes:
+      label: Name
+      description: Name of the dataset
+    validations:
+      required: true
+  
+  - type: input
+    id: paper
+    attributes:
+      label: Paper
+      description: Link to the dataset paper if available
+
+  - type: input
+    id: data
+    attributes:
+      label: Data
+      description: Link to the Github repository or current dataset location
+    validations:
+      required: true
+  
+  - type: textarea
+    id: motivation
+    attributes:
+      label: Motivation
+      description: What are some good reasons to have this dataset
+    validations:
+      required: true
+
+  - type: markdown
+    attributes:
+      value: Instructions to add a new dataset can be found [here](https://huggingface.co/docs/datasets/share).

.github/ISSUE_TEMPLATE/add-dataset.yml

@@ -0,0 +1,45 @@
+name: Bug report
+description: Create a report to help reproduce and fix the bug
+body:
+  - type: textarea
+    id: description
+    attributes:
+      label: Describe the bug
+      description: A clear and concise description of what the bug is
+    validations:
+      required: true
+  
+  - type: textarea
+    id: reproduction
+    attributes:
+      label: Steps to reproduce the bug
+      description: |
+        Please provide a code sample that reproduces the problem you ran into. It can be a Colab link or just a code snippet.
+        If you have code snippets, error messages, stack traces please provide them here as well.
+        Important! Use code tags to correctly format your code. See https://help.github.com/en/github/writing-on-github/creating-and-highlighting-code-blocks#syntax-highlighting
+        Do not use screenshots, as they are hard to read and (more importantly) don't allow others to copy-and-paste your code.
+      placeholder: |
+        Steps to reproduce the behavior:
+          
+          1.
+          2.
+          3.
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected-behavior
+    validations:
+      required: true
+    attributes:
+      label: Expected behavior
+      description: A clear and concise description of the expected results.
+
+  - type: textarea
+    id: environment-info
+    attributes:
+      label: Environment info
+      description: Please share your environemnt info with us. You can run the command `datasets-cli env` and copy-paste its output below.
+      placeholder: datasets version, platform, python version, ...
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/bug-report.md

@@ -0,0 +1,29 @@
+name: Feature request
+description: Suggest an idea for this project
+labels: ["enhancement"]
+body:
+  - type: textarea
+    id: feature-request
+    attributes:
+      label: Feature request
+      description: A clear and concise description of the feature proposal.
+    validations:
+      required: true
+  
+  - type: textarea
+    id: motivation
+    validations:
+      required: true
+    attributes:
+      label: Motivation
+      description: |
+        Please outline the motivation for the proposal. Is your feature request related to a problem? e.g., I'm always frustrated when [...]. If this is related to another GitHub issue, please link here too.   
+
+  - type: textarea
+    id: contribution
+    validations:
+      required: true
+    attributes:
+      label: Your contribution
+      description: |
+        Is there any way that you could help, e.g. by submitting a PR? Make sure to read the CONTRIBUTING.MD [readme](https://github.com/huggingface/datasets/blob/main/CONTRIBUTING.md).