Update repository name in README.md

README.md

@@ -1,6 +1,8 @@
-H8/300 COFF (HMS) Toolchain
-===========================
-A cross-toolchain targeting Hitachi H8/300 processors with the COFF (or, colloquially, HMS) format, including binutils, gcc, gpc, gdb, and newlib.
+GNU Legacy Toolchain
+====================
+A legacy GNU toolchain that includes binutils, gcc, gpc, gdb, and newlib. While primarily intended for building a cross-toolchain targeting Hitachi/Renesas H8/300 processors with the COFF (or, colloquially, HMS) format, this should work for other targets as well.
+
+While this H8/300 target has sometimes been referred to as h8300-hitachi-hms, it is [more properly](https://sources.debian.org/src/gcc-h8300-hms/1%3A3.4.6%2Bdfsg2-4.2/debian/rules/#L30) identified as h8300-hitachi-coff.
 
 
 Repository Creation Notes