Merge branch 'docs/update-bug-issue-template' into 'master'

Update Bug GitLab issue template

See merge request gitlab-org/gitlab-runner!1300

.gitlab/issue_templates/Bug.md

 ## Summary
 
-> Summarize the bug encountered concisely
+<!--
+Summarize the bug encountered concisely
+-->
 
 ## Steps to reproduce
 
-> How one can reproduce the issue - this is very important
+<!--
+How one can reproduce the issue, such as the job definition, git repository structure.
+-->
+
+<!--
+Please add the definition of the job from `.gitlab-ci.yml` that is failing
+inside of the code blocks (```) below.
+-->
+<details>
+<summary> .gitlab-ci.yml </summary>
+
+```yml
+Add the job defection that is failing here
+```
+</details>
 
 ## Actual behavior
 
-> What actually happens
+<!--
+What actually happens
+-->
 
 ## Expected behavior
 
-> What you should see instead
+<!--
+What you should see instead
+-->
 
 ## Relevant logs and/or screenshots
 
-> Paste any relevant logs - please use code blocks (```) to format console output,
-> logs, and code as it's very hard to read otherwise. Please paste both build
-> log and Runner's log.
+<!--
+Paste the job logs inside of the code blocks (```) below so it would be
+easier to read.
+-->
+
+<details>
+<summary> job log </summary>
+
+```sh
+Add the job log
+```
+</details>
 
 ## Environment description
 
-> Are you using shared Runners on GitLab.com? Or is it a custom installation?
-> Which executors are used? Please also provide the versions of related tools
-> like `docker info` if you are using the Docker executor.
+<!--
+Are you using shared Runners on GitLab.com? Or is it a custom installation?
+Which executors are used? Please also provide the versions of related tools
+like `docker info` if you are using the Docker executor.
+-->
+
+<!--
+Please add the contents of `config.toml` inside of the code blocks (```)
+below, remember to remove any secret tokens!
+-->
+<details>
+<summary> config.toml contents </summary>
+
+```toml
+Add your configuration here
+```
+</details>
 
 ### Used GitLab Runner version
 
-> Please run and paste the output of `gitlab-runner --version`. If you are using
-> a Runner where you don't have access to, please paste at least the first lines
-> the from build log, like:
->
-> ```
-> Running with gitlab-ci-multi-runner 1.4.2 (bcc1794)
-> Using Docker executor with image golang:1.8 ...
-> ```
+<!--
+Please run and paste the output of `gitlab-runner --version`. If you are using
+a Runner where you don't have access to, please paste at least the first lines
+the from build log, like:
+
+```
+Running with gitlab-ci-multi-runner 1.4.2 (bcc1794)
+Using Docker executor with image golang:1.8 ...
+```
+-->