Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -10,29 +10,14 @@ assignees: ''
 **Describe the bug**
 A clear and concise description of what the bug is.
 
-**To Reproduce**
-Steps to reproduce the behavior:
-1. Go to '...'
-2. Click on '....'
-3. Scroll down to '....'
-4. See error
-
-**Expected behavior**
+**Expected behavior and actual behavior**
 A clear and concise description of what you expected to happen.
 
-**Screenshots**
-If applicable, add screenshots to help explain your problem.
-
-**Desktop (please complete the following information):**
- - OS: [e.g. iOS]
- - Browser [e.g. chrome, safari]
- - Version [e.g. 22]
-
-**Smartphone (please complete the following information):**
- - Device: [e.g. iPhone6]
- - OS: [e.g. iOS8.1]
- - Browser [e.g. stock browser, safari]
- - Version [e.g. 22]
-
-**Additional context**
-Add any other context about the problem here.
+**Sample code**
+Provide a small piece of C++ code to demonstrate the issue. Watch out: do not use threads! AMQP-CPP objects are not thread-safe _by design_. If you construct channels or call methods from one thread, while the event loop is running in a different thread, unexpected things can and will happen.
+```c++
+int main()
+{
+    // add your example program without using threads
+}
+```