Update issue and pull request templates (cvat-ai#5620)

* Move the reproduction recipe above the expected & actual behavior.
Otherwise it's a bit awkward to fill out the template, because you have
to describe what happens before you describe how to get there.

* Fix references to the old `cvat-ai/cvat` GitHub project.

* Update/remove broken links.

* Fix wording.

<!-- Raised an issue to propose your change
(https://github.com/cvat-ai/cvat/issues).
It helps to avoid duplication of efforts from multiple independent
contributors.
Discuss your ideas with maintainers to be sure that changes will be
approved and merged.
Read the
[CONTRIBUTION](https://github.com/cvat-ai/cvat/blob/develop/CONTRIBUTING.md)
guide. -->

<!-- Provide a general summary of your changes in the Title above -->

### Motivation and context
<!-- Why is this change required? What problem does it solve? If it
fixes an open
issue, please link to the issue here. Describe your changes in detail,
add
screenshots. -->
Just fixing some things that keep annoying me when I create issues/PRs.

### How has this been tested?
<!-- Please describe in detail how you tested your changes.
Include details of your testing environment, and the tests you ran to
see how your change affects other areas of the code, etc. -->

### Checklist
<!-- Go over all the following points, and put an `x` in all the boxes
that apply.
If an item isn't applicable by a reason then ~~explicitly
strikethrough~~ the whole
line. If you don't do that github will show an incorrect process for the
pull request.
If you're unsure about any of these, don't hesitate to ask. We're here
to help! -->
- [x] I submit my changes into the `develop` branch
- ~~[ ] I have added a description of my changes into
[CHANGELOG](https://github.com/cvat-ai/cvat/blob/develop/CHANGELOG.md)
file~~
- ~~[ ] I have updated the [documentation](
https://github.com/cvat-ai/cvat/blob/develop/README.md#documentation)
accordingly~~
- ~~[ ] I have added tests to cover my changes~~
- ~~[ ] I have linked related issues ([read github docs](

https://help.github.com/en/github/managing-your-work-on-github/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword))~~
- ~~[ ] I have increased versions of npm packages if it is necessary
([cvat-canvas](https://github.com/cvat-ai/cvat/tree/develop/cvat-canvas#versioning),

[cvat-core](https://github.com/cvat-ai/cvat/tree/develop/cvat-core#versioning),
[cvat-data](https://github.com/cvat-ai/cvat/tree/develop/cvat-data#versioning)
and
[cvat-ui](https://github.com/cvat-ai/cvat/tree/develop/cvat-ui#versioning))~~

### License

- [x] I submit _my code changes_ under the same [MIT License](
https://github.com/cvat-ai/cvat/blob/develop/LICENSE) that covers the
project.
  Feel free to contact the maintainers if that's a concern.

.github/ISSUE_TEMPLATE.md

@@ -4,6 +4,14 @@
 
 <!--- Provide a general summary of the issue in the Title above -->
 
+### Steps to Reproduce (for bugs)
+<!--- Provide a link to a live example or an unambiguous set of steps to
+reproduce this bug. Include code to reproduce, if relevant -->
+1.
+1.
+1.
+1.
+
 ### Expected Behaviour
 <!--- If you're describing a bug, tell us what should happen. If you're
 suggesting a change/improvement, tell us how it should work -->
@@ -14,24 +22,16 @@ behavior. If suggesting a change/improvement, explain the difference from
 current behavior -->
 
 ### Possible Solution
-<!--- Not obligatory, but suggest a fix/reason for the bug, or ideas how
+<!--- Not obligatory, but suggest a fix/reason for the bug, or ideas on how
 to implement the addition or change -->
 
-### Steps to Reproduce (for bugs)
-<!--- Provide a link to a live example or an unambiguous set of steps to
-reproduce this bug. Include code to reproduce, if relevant -->
-1.
-1.
-1.
-1.
-
 ### Context
 <!--- How has this issue affected you? What are you trying to accomplish?
 Providing context helps us come up with a solution that is most useful in
 the real world -->
 
 ### Your Environment
-<!--- Include as many relevant details about the environment you experienced
+<!--- Include relevant details about the environment you experienced
 the bug in -->
 - Git hash commit (`git log -1`):
 - Docker version `docker version` (e.g. Docker 17.0.05):
@@ -42,4 +42,3 @@ the bug in -->
     <details>
     <summary>Logs from `cvat` container</summary>
     </details>
-

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,8 +1,7 @@
-<!-- Raised an issue to propose your change (https://github.com/cvat-ai/cvat/issues).
+<!-- Raise an issue to propose your change (https://github.com/opencv/cvat/issues).
 It helps to avoid duplication of efforts from multiple independent contributors.
 Discuss your ideas with maintainers to be sure that changes will be approved and merged.
-Read the [CONTRIBUTION](https://github.com/cvat-ai/cvat/blob/develop/CONTRIBUTING.md)
-guide. -->
+Read the [Contribution guide](https://opencv.github.io/cvat/docs/contributing/). -->
 
 <!-- Provide a general summary of your changes in the Title above -->
 
@@ -18,22 +17,23 @@ see how your change affects other areas of the code, etc. -->
 
 ### Checklist
 <!-- Go over all the following points, and put an `x` in all the boxes that apply.
-If an item isn't applicable by a reason then ~~explicitly strikethrough~~ the whole
-line. If you don't do that github will show an incorrect process for the pull request.
+If an item isn't applicable for some reason, then ~~explicitly strikethrough~~ the whole
+line. If you don't do that, GitHub will show incorrect progress for the pull request.
 If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
 - [ ] I submit my changes into the `develop` branch
-- [ ] I have added a description of my changes into [CHANGELOG](https://github.com/cvat-ai/cvat/blob/develop/CHANGELOG.md) file
-- [ ] I have updated the [documentation](
-  https://github.com/cvat-ai/cvat/blob/develop/README.md#documentation) accordingly
+- [ ] I have added a description of my changes into the [CHANGELOG](https://github.com/opencv/cvat/blob/develop/CHANGELOG.md) file
+- [ ] I have updated the documentation accordingly
 - [ ] I have added tests to cover my changes
-- [ ] I have linked related issues ([read github docs](
+- [ ] I have linked related issues (see [GitHub docs](
   https://help.github.com/en/github/managing-your-work-on-github/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword))
-- [ ] I have increased versions of npm packages if it is necessary ([cvat-canvas](https://github.com/cvat-ai/cvat/tree/develop/cvat-canvas#versioning),
-[cvat-core](https://github.com/cvat-ai/cvat/tree/develop/cvat-core#versioning), [cvat-data](https://github.com/cvat-ai/cvat/tree/develop/cvat-data#versioning) and [cvat-ui](https://github.com/cvat-ai/cvat/tree/develop/cvat-ui#versioning))
+- [ ] I have increased versions of npm packages if it is necessary
+  ([cvat-canvas](https://github.com/opencv/cvat/tree/develop/cvat-canvas#versioning),
+  [cvat-core](https://github.com/opencv/cvat/tree/develop/cvat-core#versioning),
+  [cvat-data](https://github.com/opencv/cvat/tree/develop/cvat-data#versioning) and
+  [cvat-ui](https://github.com/opencv/cvat/tree/develop/cvat-ui#versioning))
 
 ### License
 
 - [ ] I submit _my code changes_ under the same [MIT License](
-  https://github.com/cvat-ai/cvat/blob/develop/LICENSE) that covers the project.
+  https://github.com/opencv/cvat/blob/develop/LICENSE) that covers the project.
   Feel free to contact the maintainers if that's a concern.
-