Take some review suggestions from current review session into account

* Rephrase sentences, fix typos, add more details.

report/sec/hifis-software-technology.tex

@@ -318,7 +318,7 @@ These environments can be created in a reproducible manner by each contributor
 independently without the need to come up with an own environment.
 
 Some of the more prominent tools are \textit{Vagrant}, \textit{Docker},
-\textit{Singularity}, \textit{Podman}.
+\textit{Singularity}, and \textit{Podman}.
 We asked the participants whether they used the mentioned virtualisation tools
 in the last twelve months (see figure \ref{fig:q018-virt-per-options}).
 The application of these techniques and tools just recently started to emerge
@@ -331,7 +331,7 @@ Development teams and even separate DevOps teams (a Portmanteau of
 during the last years.
 Because of its novelty our assumption was that these tools and techniques are
 not as well-known as other technologies yet.
-This was backed up by the responds of the participants.
+This was backed up by the responses of the participants.
 Except for \textit{Docker}, which is used by 30 \% of the repondees, those
 mentioned virtualisation tools are largely unknown and if they are known they
 seem to be rather irrelevant to the group of responders.