Update src/modality-specific-files/magnetic-resonance-imaging-data.md

Co-authored-by: Chris Markiewicz <[email protected]>

src/modality-specific-files/magnetic-resonance-imaging-data.md

@@ -696,9 +696,9 @@ In such a case, two files could have the following names:
 The user is free to choose any other label than `singleband` and
 `multiband`, as long as they are consistent across subjects and sessions.
 
-Scanner-generated TRACE, ADC and FA volumes MAY be included using the
-`TRACE`, `FA` and `ADC` suffixes.
-If TRACE or ADC volume filenames match a diffusion series with all applicable entities,
+Scanner-generated TRACE, ADC and fractional anisotropy (FA) volumes MAY be included
+using the `TRACE`, `ADC`, and `FA` suffixes, respectively
+If TRACE, ADC or FA volume filenames match a diffusion series with all applicable entities,
 such volumes SHOULD be computed from that series.
 Otherwise, some entity, such as [`acq-<label>`](../appendices/entities.md#acq),
 SHOULD be used to indicate that the files are unrelated.