fix user name

docs/rn/0.26.md

@@ -38,7 +38,7 @@ Type 'help' (and press <ENTER>) if you need any help using this.
 Now everything you need to get started is just one click away.
 
 ## Topology export
-Our partner in crime @abortok added a nice feature titled "topology data auto export" for his [graphite](https://github.com/netreplica/graphite) project in #850. What now happens is that on each lab deployment you will find a file called `topology-data.json` inside the lab directory that contains most important topology information that can be consumed by external tools.
+Our partner in crime @bortok added a nice feature titled "topology data auto export" for his [graphite](https://github.com/netreplica/graphite) project in #850. What now happens is that on each lab deployment you will find a file called `topology-data.json` inside the lab directory that contains most important topology information that can be consumed by external tools.
 
 Read more about what data is dumped [here](../manual/inventory.md#topology-data).