Minor format corrections of references

Author: pablobernabeu

_modules/open-research-software-and-open-source.md

@@ -70,7 +70,7 @@ and re-used by others.
 - [Four simple recommendations to encourage best practices in research software](https://f1000research.com/articles/6-876/v1), Jimenez et al., 2017
 - [Perspectives on Reproducibility and Sustainability of Open-Source Scientific Software from Seven Years of the Dedalus Project](https://arxiv.org/abs/1801.08200), Oishi et al., 2018
 - [Good enough practices in scientific computing](https://doi.org/10.1371/journal.pcbi.1005510), Wilson et al.,2017
-- [The Software Sustainability Institute: Changing research software attitudes and practices](https://www.software.ac.uk/software-sustainability-institute-changing-research-software-attitudes-and-practices), Crouch et al. (2013)
+- [The Software Sustainability Institute: Changing research software attitudes and practices](https://www.software.ac.uk/software-sustainability-institute-changing-research-software-attitudes-and-practices), Crouch et al., 2013
 - [Thinking Outside the Box: Developing Dynamic Data Visualizations for Psychology with Shiny](https://www.frontiersin.org/articles/10.3389/fpsyg.2015.01782/full), Ellis and Merdian, 2015
 
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