Update issue templates

.github/ISSUE_TEMPLATE/add-a-new-gap-analysis-topic.md

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+---
+name: Add a new gap-analysis topic
+about: Only those in the jlreq group should use this template.
+title: Brief_description_of_the_problem
+labels: doc:jlreq, gap
+assignees: ''
+
+---
+
+<i class="meta">This issue is applicable to most_languages.</i>
+
+Brief_intro
+
+**Specs:**
+Describe_status_of_related_spec_work
+
+**Tests & results:**
+Point_to_a_test
+Summarise_the_results_for_each_major_engine
+
+**Browser bug reports:**
+List_of_links_to_related_bug_reports
+
+**Priority:**
+Explain_why_you_chose_the_priority
+
+Move the following to the second comment in the thread:
+_The first comment in this issue contains text that will automatically appear in [the XXX gap-analysis document](https://w3c.github.io/sealreq/gap-analysis/XXX-gap#XXX) as a subsection with the same title as this issue. Any edits made to that comment will be immediately available in the document. Proposals for changes or discussion of the content can be made in comments below this point._

.github/ISSUE_TEMPLATE/ask-a-question.md

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+---
+name: Ask a question
+about: Use to ask about how people use a language or script.
+title: Short_version_of_the_question?
+labels: question
+assignees: ''
+
+---
+
+Ask_the_question_here_Use_pictures_and_links

.github/ISSUE_TEMPLATE/other.md

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+---
+name: Other
+about: Please use links or pictures for examples and sources where possible.
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+