The link to apicurio-registry-distro-connect-converter packege in https://debezium.io/documentation/reference/stable/configuration/avro.html is broken. That is the case for the documentation for version 1.6 and later. 

For version 1.8 the link is https://repo1.maven.org/maven2/io/apicurio/apicurio-registry-distro-connect-converter/2.0.2.Final/apicurio-registry-distro-connect-converter-2.0.2.Final-converter.tar.gz but the working link is https://repo1.maven.org/maven2/io/apicurio/apicurio-registry-distro-connect-converter/2.0.2.Final/apicurio-registry-distro-connect-converter-2.0.2.Final.tar.gz