README.md Improvements needed

[susan-pgedge]

The readme file needs some improvements; it doesn't tell the user why they are using this repo, and what the build processes produce. This first example was run on Ubuntu; the build steps that are documented in this repo fail:

[susan-pgedge]

Similarly, I get errors on R9:

'/lib64/libuuid.so.1.3.0' -> '/opt/pgbin-build/pgbin/shared/lib//./libuuid.so.1.3.0'
'/lib64/libblkid.so.1' -> '/opt/pgbin-build/pgbin/shared/lib//./libblkid.so.1'
'/lib64/libblkid.so.1.1.0' -> '/opt/pgbin-build/pgbin/shared/lib//./libblkid.so.1.1.0'
'/lib64/libgcrypt.so.20' -> '/opt/pgbin-build/pgbin/shared/lib//./libgcrypt.so.20'
'/lib64/libgcrypt.so.20.4.0' -> '/opt/pgbin-build/pgbin/shared/lib//./libgcrypt.so.20.4.0'
'/lib64/libmount.so.1' -> '/opt/pgbin-build/pgbin/shared/lib//./libmount.so.1'
'/lib64/libmount.so.1.1.0' -> '/opt/pgbin-build/pgbin/shared/lib//./libmount.so.1.1.0'
rm: cannot remove 'libresolv.so': No such file or directory
./sharedLibs.sh: line 82: patchelf: command not found

[hayee-bhatti]

The pgbin build system is designed to run on either :

• rhel (rocky/alma) 8 amd
• rhel (rocky/alma) 9 arm

If you are on any other OS/version/architecture combo, it wont work ...

[susan-pgedge]

I'll add that to the README...