Revert short titles

.github/ISSUE_TEMPLATE/bug.md

@@ -14,13 +14,11 @@ about: "If you're sure it's reproducible and not just your machine: submit an is
 
 <!-- To help us debug your issue, please complete these sections: -->
 
-## Description
-_What you were trying to do (and why)._
+## What you were trying to do (and why)
 
 <!-- replace me -->
 
-## Observed behavior
-_What happened (include command output)._
+## What happened (include command output)
 
 <!-- replace me -->
 
@@ -33,18 +31,15 @@ _What happened (include command output)._
   </pre>
 </details>
 
-## Expected behavior
-_What you expected to happen._
+## What you expected to happen
 
 <!-- replace me -->
 
-## Steps to reproduce
-_Step-by-step reproduction instructions (by running `brew` commands)._
+## Step-by-step reproduction instructions (by running `brew` commands)
 
 <!-- replace me -->
 
-## System configuration
-_Output of `brew config` and `brew doctor` commands._
+## Output of `brew config` and `brew doctor` commands
 
 <pre>
 <!-- replace me -->

.github/ISSUE_TEMPLATE/feature.md

@@ -10,23 +10,19 @@ about: Request our thoughts on your suggestion for a new feature for Homebrew.
 
 <!-- Please fill these sections with the relevant information: -->
 
-## Description
-_A detailed description of the proposed feature._
+# A detailed description of the proposed feature
 
 <!-- replace me -->
 
-## Motivation
-_The motivation for the feature._
+# The motivation for the feature
 
 <!-- replace me -->
 
-## Relevance
-_How the feature would be relevant to at least 90% of Homebrew users._
+# How the feature would be relevant to at least 90% of Homebrew users
 
 <!-- (if it's not: do not open a feature request) -->
 
-## Alternatives
-_What alternatives to the feature have been considered._
+# What alternatives to the feature have been considered
 
 <!-- replace me -->