Better build instructions

[louigi600]

I was unable to run the 64 bit linux binary because of an outdated libc:
./log4j2-scan /
./log4j2-scan: /lib64/libc.so.6: version GLIBC_2.15' not found (required by ./log4j2-scan) ./log4j2-scan: /lib64/libc.so.6: version GLIBC_2.14' not found (required by ./log4j2-scan)

I looked into the build instructions but for me they are far from usable.

[JStevens1855]

I believe I initially had the same issue with RHEL 6 using a openlogic JRE to run the scan using the jar file. I switched to adoptium openjdk and it worked fine. I'm not sure if your using the jar or one of the other options but it could be a limitation of JRE with the flavor of linux your testing against. I switched to this version and ran the jar with it and it worked great.
https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u312-b07/OpenJDK8U-jre_x64_linux_hotspot_8u312b07.tar.gz

[xeraph]

@louigi600 You can use JAR version instead.