Adding documentation issue template.

Author: debora-ito

.github/ISSUE_TEMPLATE/documentation.md

@@ -0,0 +1,15 @@
+---
+name: "\U0001F4D5 Documentation Issue"
+about: Report an issue in the API Reference documentation or Developer Guide
+labels: documentation, needs-triage
+---
+
+<!--- Provide a general summary of the issue in the Title above -->
+
+## Describe the issue
+<!--- A clear and concise description of the issue -->
+
+## Links
+<!-- Include links to affected documentation page(s) -->
+
+

.github/ISSUE_TEMPLATE/feature-request.md

@@ -30,7 +30,7 @@ labels: feature-request, needs-triage
 
 
 ## Your Environment
-<!--- Include as many relevant details about the environment where the bug was discovered -->
+<!--- Include as many relevant details as possible about your environment -->
 * AWS Java SDK version used:
 * JDK version used:
 * Operating System and version:

.github/ISSUE_TEMPLATE/general-issue.md

@@ -22,7 +22,7 @@ labels: guidance, needs-triage
 <!--- If service responses are relevant, please include wirelogs -->
 
 ## Your Environment
-<!--- Include as many relevant details about the environment where the bug was discovered -->
+<!--- Include as many relevant details as possible about your environment -->
 * AWS Java SDK version used:
 * JDK version used:
 * Operating System and version: