Add issue template, fix others

The documentation template is for a missing documentation file or
problem with documentation. This MIGHT be classified under a website
issue but it is kind of a topic on its own and as an issue for this was
recently opened (with the documentation label) this seems like a worthy
thing to have.

The bug issue template now properly adds the 'bug' label.

The other issue templates have lower case labels.

.github/ISSUE_TEMPLATE/author_details.yml

@@ -1,7 +1,7 @@
 name: Author details
 description: Report a problem with information about a winning author
 title: "[Author] <title>"
-labels: ["Author"]
+labels: ["author"]
 body:
 - type: checkboxes
   attributes:

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,6 +1,7 @@
 name: Bug report
 description: Report a bug with a tool
 title: "[Bug] <title>"
+labels: ["bug"]
 body:
 - type: checkboxes
   attributes:

.github/ISSUE_TEMPLATE/documentation.yml

@@ -0,0 +1,56 @@
+name: Documentation issue
+description: Report a problem with documentation
+title: "[Documentation] <title>"
+labels: ["documentation"]
+body:
+- type: checkboxes
+  attributes:
+    label: Is there an existing issue for this?
+    description: Please search to see if an issue already exists for the problem you're reporting.
+    options:
+    - label: I have searched for existing issues and did not find anything like it
+      required: true
+- type: textarea
+  attributes:
+    label: Describe the problem with or missing documentation
+    description: Please let us know what documentation problem there is.
+  validations:
+    required: true
+
+- type: textarea
+  attributes:
+    label: Relevant files
+    description: |
+       Do you have any **relevant** files? This **can** be **EXTREMELY** helpful, if you do.
+
+       Tip: you can attach files by clicking the text area to highlight it and then click the link that says paste, drop or click to add files.
+  validations:
+    required: false
+
+- type: textarea
+  attributes:
+    label: What you expect
+    description: |
+        Please describe what you think is missing or is incorrect and why, as best you can (the more details you provide the better). If you have images or other files that will help explain what you're getting at, this can also be **EXTREMELY** helpful.
+
+        Tip: you can attach files by clicking the text area to highlight it and then click the link that says paste, drop or click to add files.
+  validations:
+    required: true
+
+- type: textarea
+  attributes:
+    label: Relevant links or files
+    description: Please provide us with a list of relevant links or files, if applicable.
+  validations:
+    required: false
+
+- type: textarea
+  attributes:
+    label: Anything else?
+    description: |
+      Do you have any additional context or information?
+
+      Tip: you can attach files by clicking the text area to highlight it and then click the link that says paste, drop or click to add files.
+  validations:
+    required: false
+

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,7 +1,7 @@
 name: Feature request
 description: Suggest a feature
 title: "[Feature] <title>"
-labels: ["Feature"]
+labels: ["feature"]
 body:
 - type: checkboxes
   attributes:

.github/ISSUE_TEMPLATE/other_issue.yml

@@ -1,6 +1,7 @@
 name: Other issue
 description: Some problem not listed
 title: "[Other] <title>"
+labels: ["other"]
 body:
 - type: checkboxes
   attributes:

.github/ISSUE_TEMPLATE/website_issue.yml

@@ -1,7 +1,7 @@
 name: Website issue
 description: Report a problem with the website
 title: "[Website] <title>"
-labels: ["Website"]
+labels: ["website"]
 body:
 - type: checkboxes
   attributes: