added templates for issues and prs

.github/issue_template.md

@@ -0,0 +1,33 @@
+### Issue Reporting
+
+*Please write all text in English in order to facilitate communication and collaboration. Thank you!*
+
+#### Description
+
+[Provide a clear and concise description of the issue]
+
+#### Steps to Reproduce
+
+1. [First step]
+2. [Second step]
+3. [Any subsequent steps]
+
+#### Expected Behavior
+
+[Describe what you expected to happen]
+
+#### Actual Behavior
+
+[Describe what actually happened]
+
+#### Screenshots
+
+[If applicable, add screenshots to help explain the issue]
+
+#### Additional Information
+
+[Any additional information or context that can be helpful in resolving the issue]
+
+#### Environment
+
+[Include as many relevant details about the environment you experienced the bug in.]

.github/pull_request_template.md

@@ -1,12 +1,12 @@
-Checklist:
+### Pull Request
 
-<!-- Please follow this checklist and put an x in each of the boxes, like this: [x]. It will help the moderators review your PR. -->
+*Please write all text in English in order to facilitate communication and collaboration, and follow this checklist. It will help the contributors to review your PR. Thank you!*
 
 - [ ] My pull request has a descriptive title. (unlike `Update index.md`). Check [this](https://www.conventionalcommits.org/en/v1.0.0/) guide regarding titles.
-- [ ] If applicable, I have tested these changes.
+- [ ] If applicable, I have tested these changes locally.
 
-<!--If your pull request closes a GitHub issue, replace the XXXXX below with the issue number.-->
+*If your pull request closes a GitHub issue, replace the XXXXX below with the issue number.*
 
 Closes #XXXXX
 
-<!-- You can add additional description of changes below this line -->
+---