Update mutate.md

docs/src/en/mutate.md

@@ -21,15 +21,15 @@ Alternatively: Input sequence(s) as a string or list, e.g. 'AGCTAGCT'.
 
 **Required arguments**  
 `-m` `--mutations`  
-Path to the csv or tsv file (e.g., 'path/to/mutations.csv') or data frame (DataFrame object) containing information about the mutations in the following format:  
-
-| mutation         | mut_ID | seq_ID |
-|------------------|--------|--------|
-| c.2C>T           | mut1   | seq1   |
-| c.9_13inv        | mut2   | seq2   |
-| c.9_13inv        | mut2   | seq4   |
-| c.9_13delinsAAT  | mut3   | seq4   |
-| ...              | ...    | ...    |
+Path to the csv or tsv file (e.g., 'path/to/mutations.csv') or data frame (DataFrame object) containing information about the mutations in the following format (the 'notes' column is not necessary):  
+
+| mutation         | mut_ID | seq_ID | notes |
+|------------------|--------|--------|-|
+| c.2C>T           | mut1   | seq1   | -> Apply mutation 1 to sequence 1 |
+| c.9_13inv        | mut2   | seq2   | -> Apply mutation 2 to sequence 2 |
+| c.9_13inv        | mut2   | seq4   | -> Apply mutation 2 to sequence 4 |
+| c.9_13delinsAAT  | mut3   | seq4   | -> Apply mutation 3 to sequence 4 |
+| ...              | ...    | ...    |                                   |
 
 'mutation' = Column containing the mutations to be performed written in standard mutation annotation  
 'mut_ID' = Column containing the identifier for each mutation