Merge pull request #5 from dlaehnemann/docs/add-mention-of-log-file

docs: mention that a log file with a fixed file name is always appended to

Author: priesgo

docs/source/03_02_output_data.md

@@ -109,6 +109,10 @@ The following table describes each of the annotations in the output:
 | Hex_alignment_score_MHCI                  | the alignment score by HEX for ` Best_affinity_MHCI_epitope `                                                                                                                                                                                                                                                   | HEX                               |
 | Hex_alignment_score_MHCII                 | the alignment score by HEX for ` Best_affinity_MHCII_epitope`                                                                                                                                                                                                                                                   | HEX                               |
 
+In addition, all logging output is appended to a log file with the suffix
+"*<folder>/<prefix>.log*", where the folder is set by `--output-folder` and the
+prefix can be set with `--output-prefix`.
+
 ### Tabular format
 
 An output table with the suffix "*_neoantigen_candidates_annotated.tsv*" is created.