Remove redundancy, improve wording.

.github/ISSUE_TEMPLATE.md

@@ -1,15 +1,19 @@
 ### Version of Beat Link Trigger
 
-(Replace this text by copying from the top left corner of the `About` window or the start of the log file.)
+(Replace this text by copying from the top left corner of the About window or the start of the log file.)
 
-### Version of Java (from bottom left corner of the `About` window)
+### Version of Java
 
-(Replace this text by copying from the bottom left corner of the `About` window or the start of the log file.)
+(Replace this text by copying from the bottom left corner of the About window or the start of the log file.)
 
 ### Version of OS
 
-(Replace this text with the name [Mac OS, Windows, Linux] and version of your operating system.)
+(Replace this text with the name and version of your operating system, e.g. "macOS 10.13.6".)
 
-### The issue you're experiencing (expected vs. actual, screenshot, section of log file, etc)
+### The issue you're experiencing
 
-[Please fill in as many details as you can here.]
+(Please fill in as many details as you can here. What did you expect,
+but what actually happened? Can you include links to screen shots if
+they will help explain it? Can you copy and paste relevant sections of
+the log file showing stack traces when things were going wrong? The
+more you can share, the more likely we will be able to help.)