add heading

Author: JoshuaMoelans

docs/platforms/native/advanced-usage/backend-tradeoffs/index.mdx

@@ -9,6 +9,8 @@ The Native SDK lets users decide at compile-time between three crash backends:
 * `breakpad`
 * `inproc`
 
+### Why is `crashpad` the default?
+
 Currently, `crashpad` is the default on all desktop platforms because it
 
 * has an external `handler` process that allows for external snapshots and sending crash reports immediately (instead of on the next successful start of your application)