add the binaries' 00_README.txt to the repo

docs/binaries/00_README.txt

@@ -0,0 +1,79 @@
+Binary BorgBackup builds
+========================
+
+The binaries are supposed to work on the specified platform without installing
+any dependencies.
+
+
+Download the correct files
+--------------------------
+
+x86 / x86_64 architecture
+~~~~~~~~~~~~~~~~~~~~~~~~~
+borg-linuxnewer64   Linux 64bit (built on Debian 12 "Bookworm" with glibc 2.36)
+                    Note: you can also try them on other older Linuxes - as
+                    long as the glibc is compatible, they will work.
+borg-linuxnew64     Linux 64bit (built on Debian 11 "Bullseye" with glibc 2.31)
+                    Note: you can also try them on other older Linuxes - as
+                    long as the glibc is compatible, they will work.
+borg-linux64        Linux 64bit (built on Debian 10 "Buster" with glibc 2.28)
+                    Note: you can also try them on other older Linuxes - as
+                    long as the glibc is compatible, they will work.
+borg-linuxold64     Linux 64bit (built on Debian 9 "Stretch" with glibc 2.24)
+                    Note: you can also try them on other older Linuxes - as
+                    long as the glibc is compatible, they will work.
+borg-macos64        macOS (Darwin) 64bit (built on macOS Sierra 10.12
+                    with latest macFUSE from brew, requires >= 10.12)
+borg-freebsd64      FreeBSD 64bit (built on FreeBSD 13.1)
+*.tgz               similar to above, but built as a directory with files,
+                    not as a single self-extracting binary.
+*.asc               GnuPG signatures for *
+
+
+Verifying your download
+-----------------------
+
+Please check the GPG signature to make sure you received the binary as I have
+built it.
+
+To check the GPG signature, download both the binary and the corresponding
+*.asc file and then (on the shell) type, e.g.:
+
+    gpg --recv-keys 9F88FB52FAF7B393
+    gpg --verify borg-linux64.asc borg-linux64
+
+The files are signed by:
+
+Thomas Waldmann <tw@waldmann-edv.de>
+GPG key fingerprint: 6D5B EF9A DD20 7580 5747 B70F 9F88 FB52 FAF7 B393
+
+My fingerprint is also in the footer of all my borgbackup mailing list posts.
+
+
+Installing
+----------
+
+It is suggested that you rename or symlink the binary to just "borg".
+
+On UNIX-like platforms, /usr/local/bin/ or ~/bin/ is a nice place for it,
+but you can invoke it from every place by giving a full path to it.
+
+Make sure the file is readable and executable (chmod +rx borg on UNIX-like
+platforms).
+
+
+Reporting issues
+----------------
+If you find issues, please open a ticket on our issue tracker:
+
+https://github.com/borgbackup/borg/issues/
+
+There, please give:
+- the version number (it is displayed if you invoke borg -V)
+- the sha256sum of the binary
+- a good description of what the issue is
+- a good description of how to reproduce your issue
+- a traceback with system info (if you have one)
+- your precise platform (CPU, 32/64bit?), OS, distribution, release
+- your python and (g)libc version
+