Merge pull request RocketChat#359 from joshkel/patch-1

Fix typos in ISSUE_TEMPLATE

Author: rodrigok

.github/ISSUE_TEMPLATE.md

@@ -16,9 +16,9 @@
 
 #### Current Behavior
 
-<!-- INSTRUCTION: Explain the current bahavior and attacth screen shots if it is possible -->
+<!-- INSTRUCTION: Explain the current behavior and attach screen shots if it is possible -->
 
 #### Expected Behavior
 
-<!-- INSTRUCTION: Explain the expected bahavior and attacth screen shots if it is possible -->
+<!-- INSTRUCTION: Explain the expected behavior and attach screen shots if it is possible -->