Update sublineage query for covsonar 2, add warning note�[1~

faq.md

@@ -84,11 +84,13 @@ Semi-globally aligned Sequence: ATGCCATGATTAGGTGA--------
 |Optimize sqlite database                                                                  |`./sonar.py optimize --db test.db`                                                                                      |`sonar optimize --db test.db`                                                                                        |
 |Calculate database statistics                                                             |`./sonar.py info --db ${db}`                                                                                            |`sonar info --db test.db`                                                                                            |
 |Remove a set of sequences by ID                                                           |`./sonar.py remove --db test.db  --file sequences-to-delete.ids`                                                        |`sonar delete --db test.db --sample-file sequences-to-delete.ids`                                                    |
-|Identify sequences with a given lineage or any of its sublineages                         |`./sonar.py match --lineage B.1.1.7 --with-sublineage --db test.db --tsv`                                               |`sonar match --db test.db --LINEAGE B.1.1.7 --with-sublineage LINEAGE`                                               |
+|Identify sequences with a given lineage or any of its sublineages                         |`./sonar.py match --lineage B.1.1.7 --with-sublineage --db test.db --tsv`                                               |`sonar match --db test.db --LINEAGE "B.1.1.7*"` (see NOTE1 below!)                            |
 |Output all sequences, including purely ambiguous variations in profiles (e.g. N stretches)|`./sonar.py match --ambig --tsv --db test.db`                                                                           |`sonar match --db test.db --showNX`                                                                                  |
 |Output all sequences that contain frameshift mutations                                    |`./sonar.py match --only_frameshifts --db test.db`                                                                      |`sonar match --db test.db --frameshifts-only`                                                                        |
 |Output all sequences that do not belong to a given lineage, in a date range               |`./sonar.py match --lineage ^B.1.1.529 --lineage ^BA.% --date 2021-12-01:2021-12-31  --db test.db --tsv`                |`sonar match --db test.db --LINEAGE "^B.1.1.529" "^BA%" --DATE 2021-12-01:2021-12-31`                          |
 
+NOTE1: Sublineage queries will not work if you have never run the `update-lineages` command on your database. Without that command, covSonar doesn't know the relationships between children and parent Pangolin lineages.
+
 ## Troubleshooting
 
 **Q:  `covSonar2` crashes with: `sqlite3.OperationalError: attempt to write a readonly database`**