diff --git a/benchmarks.md b/benchmarks.md
index 5be8734..df52d9d 100644
--- a/benchmarks.md
+++ b/benchmarks.md
@@ -3,7 +3,7 @@
 Collection of hints and links which can be useful for people new to DNS benchmarking.
 
 
-### Step 0. Prerequisites
+## Step 0. Prerequisites
 See DNS-OARC 42, DNS Benchmarking 101: Essentials and Common Pitfalls [slides](https://indico.dns-oarc.net/event/48/contributions/1033/attachments/991/1943/pspacek.pdf), [video recording](https://www.youtube.com/watch?v=ZrMLeyu4gTU&list=PLCAxS3rufJ1fHh8oe9UQ0IwlVfHq30_hh&index=16)
 
 - Test design **must be** different for any combination of
@@ -26,7 +26,8 @@ See DNS-OARC 42, DNS Benchmarking 101: Essentials and Common Pitfalls [slides](h
   - pick minimum value from (# of CPUS in the chosen NUMA domain, number of network queues) and use that for number of threads
   - these are just a starting point, experiment!
 
-### Resolvers
+
+## Resolvers
 - An example with explanation why and how we test resolvers: https://www.isc.org/blogs/bind-resolver-performance-july-2021/
 - **:warning: Results cannot be generalized to other data sets** or setups with any certainty
   - Why? Because every single query (and it's timing) changes _state_ of the system under test. Not to speak of dependency on authoritative server performance ...