Update copy.md with issue guideline updates and merge request guidelines

Update examples and labels to use sentence case.

Update copy.md  [ci skip]

Update copy.md [ci skip]

Update copy.md

doc/development/ux_guide/copy.md

@@ -7,7 +7,7 @@ We are currently inconsistent with this guidance. Images below are created to il
 ## Contents
 * [Brevity](#brevity)
-* [Forms](#forms)
+* [Sentence case](#sentence-case)
 * [Terminology](#terminology)
 ---
@@ -27,52 +27,73 @@ Preferrably use context and placement of controls to make it obvious what clicki
 ---
-## Forms
-### Adding items
+## Sentence case
+Use sentence case for all titles, headings, labels, menu items, and buttons.
+---
+
+## Terminology
+Only use the terms in the tables below.
+
+### Issues
+
+#### Adjectives (states)
+
+| Term |
+| ---- |
+| Open |
+| Closed |
+| Deleted |
+
+>**Example:**
+Use `5 open issues` and don't use `5 pending issues`.
+
+#### Verbs (actions)
+
+| Term | Use | Don't |
+| ---- | --- | --- |
+| Add | Add an issue | Don't use `create` or `new` |
+| View | View an open or closed issue ||
+| Edit | Edit an open or closed issue | Don't use `update` |
+| Close | Close an open issue ||
+| Re-open | Re-open a closed issue | There should never be a need to use `open` as a verb |
+| Delete | Delete an open or closed issue ||
+
+#### Add issue
 When viewing a list of issues, there is a button that is labeled `Add`. Given the context in the example, it is clearly referring to issues. If the context were not clear enough, the label could be `Add issue`. Clicking the button will bring you to the `Add issue` form. Other add flows should be similar.
 ![Add issue button](img/copy-form-addissuebutton.png)
-The form should be titled `Add issue`. The submit button should be labeled `Save` or `Submit`. Do not use `Add`, `Create`, `New`, or `Save Changes`. The cancel button should be labeled `Cancel`. Do not use `Back`.
+The form should be titled `Add issue`. The submit button should be labeled `Submit`. Don't use `Add`, `Create`, `New`, or `Save changes`. The cancel button should be labeled `Cancel`. Don't use `Back`.
 ![Add issue form](img/copy-form-addissueform.png)
-### Editing items
+#### Edit issue
 When in context of an issue, the affordance to edit it is labeled `Edit`. If the context is not clear enough, `Edit issue` could be considered. Other edit flows should be similar.
 ![Edit issue button](img/copy-form-editissuebutton.png)
-The form should be titled `Edit Issue`. The submit button should be labeled `Save`. Do not use `Edit`, `Update`, `New`, or `Save Changes`. The cancel button should be labeled `Cancel`. Do not use `Back`.
+The form should be titled `Edit issue`. The submit button should be labeled `Save`. Don't use `Edit`, `Update`, `Submit`, or `Save changes`. The cancel button should be labeled `Cancel`. Don't use `Back`.
 ![Edit issue form](img/copy-form-editissueform.png)
----
-
-## Terminology
-### Issues
+### Merge requests
 #### Adjectives (states)
-| Term | Use |
-| ---- | --- |
-| Open | Issue is active |
-| Closed | Issue is no longer active |
-
->**Example:**
-Use `5 open issues` and do not use `5 pending issues`.
-Only use the adjectives in the table above.
+| Term |
+| ---- |
+| Open |
+| Merged |
 #### Verbs (actions)
-| Term | Use |
-| ---- | --- |
-| Add | For adding an issue. Do not use `create` or `new` |
-| View | View an issue |
-| Edit | Edit an issue. Do not use `update` |
-| Close | Closing an issue |
-| Re-open | Re-open an issue. There should never be a need to use `open` as a verb |
-| Delete | Deleting an issue. Do not use `remove` |
\ No newline at end of file
+| Term | Use | Don't |
+| ---- | --- | --- |
+| Add | Add a merge request | Do not use `create` or `new` |
+| View | View an open or merged merge request ||
+| Edit | Edit an open or merged merge request| Do not use `update` |
+| Merge | Merge an open merge request ||
\ No newline at end of file