Update REAMDE.md

Author: pomadchin

.github/workflows/actions.yml

@@ -13,13 +13,6 @@ jobs:
 
     container:
       image: daunnc/pdal-debian:2.0.1
-      env:
-        SCALA_VERSION: ${{matrix.scala}}
-      volumes:
-        - ~/.ivy2:/root/.ivy2 
-        - ~/.sbt:/root/.sbt
-        - ~/.cache:/root/.cache
-        - $PWD:/pdal-java
 
     steps:
       - name: Checkout
@@ -45,11 +38,11 @@ jobs:
 
       - name: Test
         run: |
-          ./sbt ++$SCALA_VERSION "project core" test
-          ./sbt ++$SCALA_VERSION "project core-scala" test 
+          ./sbt ++${{matrix.scala}} "project core" test
+          ./sbt ++${{matrix.scala}} "project core-scala" test 
           cd examples/pdal-jni
-          ./sbt ++$SCALA_VERSION "runMain com.azavea.Main"
-          ./sbt ++$SCALA_VERSION "runMain com.azavea.MainScala"
+          ./sbt ++${{matrix.scala}} "runMain com.azavea.Main"
+          ./sbt ++${{matrix.scala}} "runMain com.azavea.MainScala"
 
   macos:
     runs-on: ${{matrix.os}}

README.md

@@ -1,6 +1,6 @@
 # PDAL Java bindings
 
-![PDAL Java CI](https://github.com/PDAL/java/workflows/PDAL%20Java%20CI/badge.svg) [![Join the chat at https://gitter.im/PDAL/PDAL](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/PDAL/PDAL?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![Maven Central](https://maven-badges.herokuapp.com/maven-central/io.pdal/pdal/badge.svg)](https://search.maven.org/search?q=g:io.pdal)
+[![PDAL Java CI](https://github.com/PDAL/java/workflows/PDAL%20Java%20CI/badge.svg)](https://github.com/PDAL/java/actions) [![Join the chat at https://gitter.im/PDAL/PDAL](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/PDAL/PDAL?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![Maven Central](https://maven-badges.herokuapp.com/maven-central/io.pdal/pdal/badge.svg)](https://search.maven.org/search?q=g:io.pdal)
 
 Java bindings to use PDAL on JVM (supports PDAL >= 2.0).
 Mac users can experience some issues with bindings that were build against a different PDAL version,