Correct label permissions documentation

Reporters can manage labels; you don't need to be a Developer.

doc/user/project/labels.md

@@ -14,7 +14,7 @@ In GitLab, you can create project and group labels:
 ## Creating labels
 
 >**Note:**
-A permission level of `Developer` or higher is required to create labels.
+A permission level of Reporter or higher is required to create labels.
 
 ### New project label
 
@@ -49,7 +49,7 @@ From the sidebar of an issue or a merge request, you can create a new **project
 ## Editing labels
 
 NOTE: **Note:**
-A permission level of `Developer` or higher is required to edit labels.
+A permission level of Reporter or higher is required to edit labels.
 
 You can update a label by navigating to **Issues > Labels** in the project or group and clicking the pencil icon.