Update paper.tex

Co-authored-by: Frank Löffler <[email protected]>

Author: mhagdorn

paper.tex

@@ -448,7 +448,7 @@ \subsection{Module 8: Software Maintenance Service}%
 
 In contrast to research data, the long-term availability and usability of research software requires more than an adequate archiving method:
 Software maintenance is the ongoing change process of software after its release.
-It includes  both fixing  bugs that are discovered in the software and adapting the software to changes in the execution environment such as hardware, operating system, toolchain and software dependencies.
+It includes  both fixing bugs that are discovered in the software and adapting the software to changes in the execution environment such as hardware, operating system, toolchain and software dependencies.
 In the scientific community there is a demand for long term maintenance of research software,
 but academic labour turnover and missing funding schemes make research software maintenance often rely on the (potentially unpaid) efforts of individuals.