diff --git a/docs/usage.md b/docs/usage.md
index f6168a6..77f5483 100644
--- a/docs/usage.md
+++ b/docs/usage.md
@@ -609,7 +609,6 @@ You can follow the Kraken2 [tutorial](https://github.com/DerrickWood/kraken2/blo
 
 For KrakenUniq, we recommend using one of the available databases [here](https://benlangmead.github.io/aws-indexes/k2). But if you wish to build your own, please see the [documentation](https://github.com/fbreitwieser/krakenuniq/blob/master/README.md#custom-databases-with-ncbi-taxonomy).
 
-
 #### MALT
 
 <details markdown="1">
@@ -644,7 +643,6 @@ MALT-build can be multi-threaded with `-t` to speed up building.
 
 See the [MALT manual](https://software-ab.informatik.uni-tuebingen.de/download/malt/manual.pdf) for more information.
 
-
 #### MetaPhlAn3
 
 <details markdown="1">