Reformat to hopefully get more people to follow the template

.github/ISSUE_TEMPLATE

@@ -1,14 +1,24 @@
+!ATTENTION!
+Please read the following page carefully and provide us with all the
+information requested:
+https://github.com/open62541/open62541/wiki/Writing-Good-Issue-Reports
+
+Use Github Markdown to format your text:
+https://help.github.com/articles/basic-writing-and-formatting-syntax/
+
+Fill out the sections and checklist below (add text at the end of each line).
+
+Remove this text between the ATTENTION marks after reading it.
+!ATTENTION!
+--------------------------------------------------------------------------------
+
 Description
 ===========
 
 
-
 Background Information / Reproduction Steps
 ===========================================
 
-See here for the kinds of information we need to reproduce the bug and how to obtain it:
-https://github.com/open62541/open62541/wiki/Writing-Good-Issue-Reports
-
 
 
 Checklist