Update protocol.md

Author: alschaffer

docs/protocol.md

@@ -5,11 +5,11 @@
 
 Briefly, pre-specifying your research question and developing a study protocol which outlines your methodology is an important open science principle. There are several benefits to developing a protocol:
 
-* It reduces 'researcher degrees of freedom' and minimises the risk of questionable research practices such as ["hypothesising after the results are known" (HARKing)](https://en.wikipedia.org/wiki/HARKing) or [p-hacking](https://en.wikipedia.org/wiki/Data_dredging);
+* It reduces "researcher degrees of freedom" and minimises the risk of questionable research practices such as ["hypothesising after the results are known" (HARKing)](https://en.wikipedia.org/wiki/HARKing) or [p-hacking](https://en.wikipedia.org/wiki/Data_dredging);
 * It increases replicability by explaining the “why” of each analytic decision (whereas study code only tells you the “what”);
 * It allows you to get feedback and identify problems early on in the process, before writing code;
 * It can help set limits on what is to be done;
-* It makes writing the manuscript easier;
+* It makes writing the manuscript easier.
 
 Taken together, this can improve both the quality and credibility of your research. Developing a detailed study plan, including figure and table shells, can be particularly helpful when using a federated analytics platform such as OpenSAFELY, as there is less scope for interactively developing these whilst working with the data.