Update README.md

zephyr-data-specs · Aug 7, 2024 · caa4c85 · caa4c85
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 # GMNS networks in a database
-Although GMNS is implementation-agnostic, some users may find it convenient to place GMNS-formatted networks into a relational database.  This folder contains an SQLite database, as well as the sql create statements.  There are two versions:
+Although GMNS is implementation-agnostic, some users may find it convenient to place GMNS-formatted networks into a relational database. Use of a database is OPTIONAL. This folder contains an SQLite database, as well as the sql create statements.  There are two versions:
 -  Integer_ids: The ID fields (primary and foreign keys on the tables) are stored as integers
 -  Text_ids:  The ID fields (primary and foreign keys on the tables) are stored as text