small readme cleanups

CONTRIBUTING.md

@@ -14,14 +14,15 @@ To set up your local development environment:
 - Install Java 16 or later. You can download Java manually from [Adoptium](https://adoptium.net/installation.html) or
   use:
   - [Windows installer](https://adoptium.net/installation.html#windows-msi)
-  - [macOS installer](https://adoptium.net/installation.html#macos-pkg) (or `brew install --cask temurin`)
+  - [macOS installer](https://adoptium.net/installation.html#macos-pkg) (or `brew install --cask temurin`, or `port install openjdk17-temurin`)
   - [Linux installer](https://github.com/adoptium/website-v2/blob/main/src/asciidoc-pages/installation/linux.adoc)
     (or `apt-get install openjdk-17-jdk`)
 - Build and run the tests ([mvnw](https://github.com/takari/maven-wrapper) automatically downloads maven the first time
   you run it):
-  - on max/linux: `./mvnw clean test`
+  - on mac/linux: `./mvnw clean test`
   - on windows: `mvnw.cmd clean test`
   - or if you already have maven installed globally on your machine: `mvn clean test`
+  - to run just one test e.g. `GeoUtilsTest`: `./mvnw -pl planetiler-core -Dtest=GeoUtilsTest test`
 
 GitHub Workflows will run regression tests on any pull request.
 

README.md

@@ -32,7 +32,7 @@ Style [© OpenMapTiles](https://www.openmaptiles.org/)
 
 To generate a map of an area using the [basemap profile](planetiler-basemap), you will need:
 
-- Java 16+ (see [CONTIRBUTING.md](CONTRIBUTING.md)) or [Docker](https://docs.docker.com/get-docker/)
+- Java 16+ (see [CONTRIBUTING.md](CONTRIBUTING.md)) or [Docker](https://docs.docker.com/get-docker/)
 - at least 1GB of free disk space plus 5-10x the size of the `.osm.pbf` file
 - at least 0.5x as much free RAM as the input `.osm.pbf` file size