Update summarised_competencies.md

Co-authored-by: Magnus Hagdorn <[email protected]>

summarised_competencies.md

@@ -707,7 +707,7 @@ Since \ac{ML} techniques are inherently prone to biases leading to socially prob
 #### Legacy RSEs
 While programming languages, libraries and frameworks may be evolving fast,
 research software tends to be nurtured and developed by generations of researchers,
-and often without formalized code management practices (\gls{DIST},...).
+often without formalized code management practices (\gls{DIST},...).
 Experienced RSEs help modernising code, if necessary making it leaner and faster,
 often via work-intensive refactoring, and possibly exploiting code transformation tools.
 Notice the overlap with the \ac{HPC} RSE.