diagonalizer notes

README.md

@@ -156,6 +156,9 @@ where it improves legibility. Consult the source files for more information.
    - `System`
 5. Dependencies
    - None
+6. Notes
+   - Matrices are assumed in column-major format. For symmetric matrices this doesn't matter.
+   - Eigenvectors are returned in form of a matrix, with the eigenvectors in the columns.
 
 <a name="drumparams"></a>
 #### `DrumParameters`(drum_parameters.hpp), describes static state of a drum