add links to conference contributions

_posts/2021/06/2021-06-07-use-case-hts.md

@@ -30,9 +30,16 @@ The configuration of the Apache enables it to interface with FTS3.
 
 ![HTS schematic diagram]({% link assets/img/posts/2021-06-07-use-case-hts/FTS_sketch.svg %})
 
+
+#### Transfer performance
+
 First tests of HTS showed that transfers between connected centres are very feasible and the systems interoperate seamlessly with the Helmholtz AAI. 
 The transfers could be executed with a bandwidth of 80 - 120 MB/s, thus making it possible to transfer 1 TB worth of data in less than four hours without the need for further user interaction.
 
+For more information on technical details and transfer performance, you may also refer to the presentations given in
+[ISGC 2021](https://indico4.twgrid.org/indico/event/14/session/10/contribution/46) and
+[EGI](https://indico.egi.eu/event/5000/contributions/14383/) conferences.
+
 #### HTS for Helmholtz AI
 
 Colleagues from the
@@ -48,7 +55,7 @@ Simply enter the URLs of both endpoints, select the files you want to transfer a
 You can then monitor your jobs under "My jobs" and see when they are completed.
 We will also supply a small video demonstration for using HTS with webFTS in the very near future.
 
-Technical instructions for setting up an endpoint for HTS can be found [here in our Technical Documentation](https://hifis.net/doc/core-services/fts-endpoint/).
+Technical instructions for setting up an endpoint for HTS can be found [**here in our Technical Documentation**](https://hifis.net/doc/core-services/fts-endpoint/).
 
 * A pre-configured version that can be deployed easily is available as a Docker image for either standalone or Kubernetes deployments in [this gitlab repository](https://gitlab.hzdr.de/hifis/fts-apache-k8s).
 * In case an administrator wants to set up the endpoint on their own, installation and configuration instructions are available in [another repository](https://gitlab.hzdr.de/hifis/hifis-transfer-service).