[Add section on special packages in SLIME48 to the README.
Taylor Campbell <campbell@mumble.net>**20060719172650] {
hunk ./README 71
+
+** Special Packages in SLIME48
+
+Like the Scheme48 command processor, there are three special packages
+in SLIME48 which are accessible to the user but not through any
+structures defined in the config package.  These three packages are the
+scratch package, the config package itself, and the Swank RPC package.
+The scratch package is the default initial package for SLIME48
+sessions; it corresponds with the user package of the Scheme48 command
+processor.  The config package is the same as in the Scheme48 command
+processor; that is, it contains all module definitions and the
+configuration language.  The Swank RPC package is the environment in
+which RPCs sent by Emacs are evaluated.
+
+These packages are identified by the names (SCRATCH), (CONFIG), and
+(SWANK-RPC).  This helps to distinguish them from bindings defined in
+the config package.  Also, the notation for the config package is
+common to SLIME48 and scheme48.el, so it is conventional to write this
+line at the tops of files in the configuration language:
+
+  ;;; -*- Mode: Scheme; scheme48-package: (config) -*-
+
+There are also SLIME REPL shortcuts defined for access to the scratch
+and config packages; see below.
+
+The Swank RPC package is most likely not useful to many users, and
+should generally be avoided.  It may vanish in a future SLIME48.
}
