Docs and Feature Request issue template

Author: skibitsky

.github/ISSUE_TEMPLATE/documentation.yml

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+name: "\U0001F4C3 Documentation"
+description: 'Report issue or suggest an improvement to docs.'
+title: '[docs] '
+labels: ['docs']
+body:
+  - type: textarea
+    attributes:
+      label: Summary
+      description: |
+        Clearly describe what is wrong or missing from the docs.
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Link to the related docs page
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      value: If this is a typo, or something you feel up to fixing, please do so! You can edit any page in our docs by scrolling to the bottom and selecting `Edit this page`.

.github/ISSUE_TEMPLATE/feature-request.yml

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+name: "\U0001F64B Feature Request"
+description: 'Want us to add something to Web3Modal?'
+title: '[feature] '
+labels: ['feature-request']
+body:
+  - type: textarea
+    attributes:
+      label: What problem does this new feature solve?
+      description: |
+        A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Describe the solution you'd like
+      description: A clear and concise description of what you want to happen.
+    validations:
+      required: true