Update issue requirements

Author: rubenvanassche

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,39 @@
+---
+name: Bug report
+about: Create a report to help us improve icalendar-generator
+title: ''
+labels: ''
+assignees: ''
+---
+
+**✏️ Describe the bug**
+A clear and concise description of what the bug is.
+
+**↪️ To Reproduce**
+Provide us a test like this one which shows the problem:
+
+```php
+
+it('cannot create a calendar', function () {
+    $event = Event::create('Event')
+        ->startsAt(new DateTime('2021-01-01 12:00:00'))
+        ->endsAt(new DateTime('2021-01-01 13:00:00'))
+        ->description('Description')
+        ->address('Address')
+        ->url('https://www.spatie.be')
+        ->create();
+
+    // Calendar is not created (off course, since we've only created an event but for documentation purposes)
+    dd($event->get());
+});
+```
+
+Assertions aren't required, a simple dump or dd statement of what's going wrong is good enough 😄
+
+**✅ Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**🖥️ Versions**
+
+iCalendar generator:
+PHP:

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: false
+contact_links:
+    - name: Ask a question
+      url: https://github.com/spatie/icalendar-generator/discussions/new?category=q-a
+      about: Ask the community for help
+    - name: Request a feature
+      url: https://github.com/spatie/icalendar-generator/discussions/new?category=ideas
+      about: Share ideas for new features