Merge branch 'docs/ssot-diff-limits' into 'master'

Update diff_limits.md

See merge request gitlab-org/gitlab-ce!28459

doc/user/admin_area/diff_limits.md

+---
+type: reference
+---
+
 # Diff limits administration
 
+You can set a maximum size for display of diff files (patches).
+
+## Maximum diff patch size
+
+Diff files which exceed this value will be presented as 'too large' and won't
+be expandable. Instead of an expandable view, a link to the blob view will be
+shown.
+
+Patches greater than 10% of this size will be automatically collapsed, and a
+link to expand the diff will be presented.
+
 NOTE: **Note:**
 Merge requests and branch comparison views will be affected.
 
 CAUTION: **Caution:**
-These settings are currently under experimental state. They'll
-increase the resource consumption of your instance and should
-be edited mindfully.
+This setting is experimental. An increased maximum will increase resource
+consumption of your instance. Keep this in mind when adjusting the maximum.
 
-1. Access **Admin area > Settings > General**
-1. Expand **Diff limits**
+1. Go to **Admin area > Settings > General**.
+1. Expand **Diff limits**.
+1. Enter a value for **Maximum diff patch size**, measured in bytes.
+1. Click on **Save changes**.
 
-### Maximum diff patch size
+<!-- ## Troubleshooting
 
-This is the content size each diff file (patch) is allowed to reach before
-it's collapsed, without the possibility of being expanded. A link redirecting
-to the blob view will be presented for the patches that surpass this limit.
+Include any troubleshooting steps that you can foresee. If you know beforehand what issues
+one might have when setting this up, or when something is changed, or on upgrading, it's
+important to describe those, too. Think of things that may go wrong and include them here.
+This is important to minimize requests for support, and to avoid doc comments with
+questions that you know someone might ask.
 
-Patches surpassing 10% of this content size will be automatically collapsed,
-but expandable (a link to expand the diff will be presented).
+Each scenario can be a third-level heading, e.g. `### Getting error message X`.
+If you have none to add when creating a doc, leave this section in place
+but commented out to help encourage others to add to it in the future. -->