meta: update contributing guidelines and issue templates (#13039)

Co-authored-by: Pedro Augusto de Paula Barbosa <papb1996@gmail.com>

.github/ISSUE_TEMPLATE/bug_report.md

@@ -10,13 +10,17 @@ assignees: ''
 <!--
 If you don't follow the issue template, your issue may be closed.
 Please note this is an issue tracker, not a support forum.
-For general questions, please use StackOverflow or Slack:
+For general questions, please use StackOverflow:
 https://stackoverflow.com/questions/tagged/sequelize.js
 -->
 
-## Issue Description
+## Issue Creation Checklist
 
-### What are you doing?
+[ ] I have read the [contribution guidelines](https://github.com/sequelize/sequelize/blob/main/CONTRIBUTING.md)
+
+## Bug Description
+
+### SSCCE
 
 <!--
 We have a repository dedicated to make it easy for you to create an SSCCE.
@@ -27,13 +31,34 @@ Please consider using it, everyone wins!
 **Here is the link to the SSCCE for this issue:** LINK-HERE <!-- add a link to the SSCCE -->
 
 <!--
-If you don't want to use the SSCCE repository, you can also post a MINIMAL, SELF-CONTAINED code that reproduces the issue. It must be runnable by simply copying and pasting into an isolated JS file, except possibly for the database connection configuration.
-Check http://sscce.org/ or https://stackoverflow.com/help/minimal-reproducible-example to learn more about SSCCE/MCVE/reprex.
+Instead of using that repository, you can also clone the Sequelize repository and overwrite the `sscce.js` file in the root folder, run it locally and then provide the code here:
 -->
 
 ```js
 // You can delete this code block if you have included a link to your SSCCE above!
-// MINIMAL, SELF-CONTAINED code here (SSCCE/MCVE/reprex)
+const { createSequelizeInstance } = require('./dev/sscce-helpers');
+const { Model, DataTypes } = require('.');
+
+const sequelize = createSequelizeInstance({ benchmark: true });
+
+class User extends Model {}
+User.init({
+  username: DataTypes.STRING,
+  birthday: DataTypes.DATE
+}, { sequelize, modelName: 'user' });
+
+(async () => {
+  await sequelize.sync({ force: true });
+
+  const jane = await User.create({
+    username: 'janedoe',
+    birthday: new Date(1980, 6, 20)
+  });
+
+  console.log('\nJane:', jane.toJSON());
+
+  await sequelize.close();
+})();
 ```
 
 ### What do you expect to happen?
@@ -54,16 +79,15 @@ Output here
 
 ### Additional context
 
-Add any other context or screenshots about the feature request here.
+Add any other context and details here.
 
 ### Environment
 
 - Sequelize version: XXX <!-- run `npm list sequelize` to obtain this -->
 - Node.js version: XXX <!-- run `node -v` to obtain this -->
-- Operating System: XXX
-- If TypeScript related: TypeScript version: XXX
+- If TypeScript related: TypeScript version: XXX <!-- run `npm list typescript` to obtain this -->
 
-## Issue Template Checklist
+## Bug Report Checklist
 
 <!-- Please answer the questions below. If you don't, your issue may be closed. -->
 

.github/ISSUE_TEMPLATE/documentational-issue.md → .github/ISSUE_TEMPLATE/docs_issue.md

@@ -10,9 +10,13 @@ assignees: ''
 <!--
 If you don't follow the issue template, your issue may be closed.
 Please note this is an issue tracker, not a support forum.
-For general questions, please use StackOverflow or Slack.
+For general questions, please use StackOverflow.
 -->
 
+## Issue Creation Checklist
+
+[ ] I have read the [contribution guidelines](https://github.com/sequelize/sequelize/blob/main/CONTRIBUTING.md)
+
 ## Issue Description
 
 ### What was unclear/insufficient/not covered in the documentation
@@ -24,23 +28,5 @@ Write here.
 Write here.
 
 ### Additional context
-Add any other context or screenshots about the issue here.
-
-## Issue Template Checklist
-
-<!-- Please answer the questions below. If you don't, your issue may be closed. -->
 
-### Is this issue dialect-specific?
-
-- [ ] No. This issue is relevant to Sequelize as a whole.
-- [ ] Yes. This issue only applies to the following dialect(s): XXX, YYY, ZZZ
-- [ ] I don't know.
-
-### Would you be willing to resolve this issue by submitting a Pull Request?
-
-<!-- Remember that first contributors are welcome! -->
-
-- [ ] Yes, I have the time and I know how to start.
-- [ ] Yes, I have the time but I don't know how to start, I would need guidance.
-- [ ] No, I don't have the time, although I believe I could do it if I had the time...
-- [ ] No, I don't have the time and I wouldn't even know how to start.
+Add any other context or screenshots about the issue here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -10,14 +10,18 @@ assignees: ''
 <!--
 If you don't follow the issue template, your issue may be closed.
 Please note this is an issue tracker, not a support forum.
-For general questions, please use StackOverflow or Slack.
+For general questions, please use StackOverflow.
 -->
 
+## Issue Creation Checklist
+
+[ ] I have read the [contribution guidelines](https://github.com/sequelize/sequelize/blob/main/CONTRIBUTING.md)
+
 ## Feature Description
 
 ### Is your feature request related to a problem? Please describe.
 
-A clear and concise description of what the problem is. Example: I'm always frustrated when [...]
+A clear and concise description of what the problem is. Example: I'm always frustrated when ...
 
 ### Describe the solution you'd like
 
@@ -45,8 +49,8 @@ Add any other context or screenshots about the feature request here.
 
 ### Is this feature dialect-specific?
 
-- [ ] No. This issue is relevant to Sequelize as a whole.
-- [ ] Yes. This issue only applies to the following dialect(s): XXX, YYY, ZZZ
+- [ ] No. This feature is relevant to Sequelize as a whole.
+- [ ] Yes. This feature only applies to the following dialect(s): XXX, YYY, ZZZ
 
 ### Would you be willing to implement this feature by submitting a Pull Request?
 

.github/ISSUE_TEMPLATE/other_issue.md

@@ -10,9 +10,13 @@ assignees: ''
 <!--
 If you don't follow the issue template, your issue may be closed.
 Please note this is an issue tracker, not a support forum.
-For general questions, please use StackOverflow or Slack.
+For general questions, please use StackOverflow.
 -->
 
+## Issue Creation Checklist
+
+[ ] I have read the [contribution guidelines](https://github.com/sequelize/sequelize/blob/main/CONTRIBUTING.md)
+
 ## Issue Description
 
 A clear and concise description of what is this issue about.
@@ -23,11 +27,8 @@ If applicable, you can add some code. In this case, an SSCCE/MCVE/reprex is much
 Check http://sscce.org/ or https://stackoverflow.com/help/minimal-reproducible-example to learn more about SSCCE/MCVE/reprex.
 -->
 
-### StackOverflow / Slack attempts
-
-If you have tried asking on StackOverflow / Slack about this, add a link to that here.
-
 ### Additional context
+
 Add any other context or screenshots about the issue here.
 
 ## Issue Template Checklist

README.md

@@ -13,6 +13,8 @@ Sequelize follows [Semantic Versioning](http://semver.org) and supports Node v10
 
 New to Sequelize? Take a look at the [Tutorials and Guides](https://sequelize.org/master). You might also be interested in the [API Reference](https://sequelize.org/master/identifiers).
 
+Would you like to contribute? Read [our contribution guidelines](https://github.com/sequelize/sequelize/blob/main/CONTRIBUTING.md) to know more. There are many ways to help.
+
 ### v6 Release
 
 You can find the detailed changelog [here](https://github.com/sequelize/sequelize/blob/main/docs/manual/other-topics/upgrade-to-v6.md).