Fix typo in icon-request issue template to add label automatically, Closes #405

Author: EnisMulic

.github/ISSUE_TEMPLATE/icon-request.md

@@ -1,15 +1,19 @@
 ---
 name: Icon request
 about: Requesting a new icon or changes to an existing icon
-title: 'Icon request: [NAME]'
-labels: 'request: icon'
-assignees: ''
-
+title: "Icon request: [NAME]"
+labels: "request:icon"
+assignees: ""
 ---
 
 ### About the icon
-*Short description why you think this icon is matching in our project*
+
+_Short description why you think this icon is matching in our project_
+
 ### Links
-*Provide helpful links which can be used to take a deeper look into the icon and provide, if available, some resources (svg's) where the icon can be found*
+
+_Provide helpful links which can be used to take a deeper look into the icon and provide, if available, some resources (svg's) where the icon can be found_
+
 ### Preview
-*If available, provide some images of the icon you would like to be added*
+
+_If available, provide some images of the icon you would like to be added_