Update README

Author: bkeepers

README.md

@@ -18,9 +18,9 @@ If you know of other public sources of harmonic constituents, please [open an is
 
 The database is available as an NPM package and as an [XTide-compatible TCD file](./packages/tcd/).
 
-### XTide
+### XTide / OpenCPN / TCD-compatible software
 
-A pre-built `neaps-YYYYMMDD.tcd` file is attached to each [GitHub Release](https://github.com/openwatersio/tide-database/releases). This file is compatible with [XTide](https://flaterco.com/xtide/) and any software that reads the [libtcd](https://flaterco.com/xtide/libtcd.html) format. [See the TCD package for usage instructions.](./packages/tcd/README.md)
+A pre-built [TCD file](./packages/tcd/README.md) compatible with XTide, OpenCPN, and any software that reads the libtcd format. [See the TCD package for usage instructions.](./packages/tcd/README.md)
 
 ### JavaScript / TypeScript
 

packages/tcd/README.md

@@ -6,11 +6,11 @@ The TCD file includes all stations in the tide database, and all tidal constitue
 
 ## Usage
 
-Download the latest `neaps-YYYYMMDD.tcd` from [GitHub Releases](https://github.com/openwatersio/tide-database/releases).
+Download the latest `neaps-YYYYMMDD.tcd` from [releases](https://github.com/openwatersio/tide-database/releases).
 
 ### OpenCPN
 
-Open the OpenCPN options, navigate to the "Charts" tab, and add the TCD file as a "Tides & Currents" data source. See the [OpenCPN manual](https://opencpn.org/wiki/dokuwiki/doku.php?id=opencpn%3Amanual\_basic%3Aset\_options%3Acharts%3Atides-currents) for more details.
+Open the OpenCPN options, navigate to the "Charts" tab, and add the TCD file as a "Tides & Currents" data source. See the [OpenCPN manual](https://opencpn.org/wiki/dokuwiki/doku.php?id=opencpn%3Amanual_basic%3Aset_options%3Acharts%3Atides-currents) for more details.
 
 ![screenshot of tide stations in OpenCPN](https://github.com/user-attachments/assets/6e57f4fd-0dad-4aae-b1db-fe638915c225)
 
@@ -56,8 +56,8 @@ tide -l "BOSTON, MA, United States" -b "2026-01-01 00:00" -e "2026-01-08 00:00"
 
 ## Contributing
 
-* Build the TCD file with: `npm run build`
-* Run tests with: `npm test`
+- Build the TCD file with: `npm run build`
+- Run tests with: `npm test`
 
 ## References