Update src/modality-specific-files/magnetic-resonance-spectroscopy.md

Co-authored-by: Julia Guiomar Niso Galán <[email protected]>

src/modality-specific-files/magnetic-resonance-spectroscopy.md

@@ -21,7 +21,7 @@ and a guide for using macros can be found at
 -->
 
 {{ MACROS___make_filename_template("raw", datatypes=["mrs"], suffixes=["svs", "mrsi", "ref", "unloc"]) }}
-
+MRS is a noninvasive technique to detect biochemical changes in the brain. It is conducted using conventional MRI systems.
 Each manufacturer has its own file format (sometimes multiple formats) for exporting MRS data from
 the scanner console for offline processing.
 GE exports a P-file (`*.7`) that stores unprocessed, un-coil-combined data with metadata embedded