chore: update github issue templates

Adds a feature request template.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,27 @@
+---
+name: Bug report
+about: Create a bug report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+<!--
+Before reporting a bug:
+If your database schema has changed while the PostgREST server is running,
+send the server a SIGUSR1 signal or restart it (http://postgrest.org/en/stable/admin.html#schema-reloading) to ensure the schema cache is not stale. This sometimes fixes apparent bugs.
+-->
+### Environment
+
+* PostgreSQL version: (if using docker, specify the image)
+* PostgREST version: (if using docker, specify the image)
+* Operating system:
+
+### Description of issue
+
+Describe the behavior you expected vs the actual behavior. Include:
+
+- A minimal SQL definition.
+- How you make the request to PostgREST (curl command preferred).
+- The PostgREST response.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,16 @@
+---
+name: Feature request
+about: Suggest an enhancement for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+## Problem
+
+A clear and concise description of what the problem is.
+
+## Solution
+
+A clear and concise description of what you want to happen.