Add files via upload

1 files changed, 26 insertions, 13 deletions

diff --git a/intro b/intro
index 0d9ca00..6ce3ec9 100644
--- a/intro
+++ b/intro
@@ -1,13 +1,26 @@
-These demos demonstrate using Gtk directly from a higher level language.  None of the demos have any low level code in them.
-There is no need for any makefiles, C compilers, or any other low level stuff.  There is probably no need to install Gtk,
-because it's probably already used by your Linux.  Any high level language can be used if it has the right features.  Using
-sbcl is just one example of how to do this.
-
-When a demo script gets invoked, the code gets compiled into memory, by sbcl, with a very fast compiler, so there will be
-no object files, executable binaries, etc., unless those are desired.  The only requirement is to download or copy and
-paste the demos and demostuff and make each demo executable with "chmod +x demo".  Then run the demos with
-"./demo1 ; ./demo2 ; ./demo3".
-
-If there are error messages about not finding sbcl, it might be necessary to install that, or to add it to the path.
-Installing sbcl is easy, usually via the Linux distro.  In the rare circumstance that a particular Linux distro doesn't
-have sbcl, simply go to sbcl.org to download the sources or binary.
+These demos demonstrate using Gtk directly from a higher level language.
+None of the demos have any low level code in them.  There is no need for
+any makefiles, C compilers, or any other low level stuff.  There is
+probably no need to install Gtk, because it's probably already used by
+your Linux.
+
+To use a different high level language for these demos, it is of course
+necessary to edit them to change the language.  But they aren't very long
+and that might not take very long.  It's strongly advised to run the
+present demos first, and make some minor changes to them, to see the
+differences, to make sure to understand how they work, before starting to
+change them to a different language.
+
+When a demo script gets invoked, the code gets compiled into memory, with
+a very fast compiler, so there will be no object files, executable binaries,
+etc., unless those are desired.  The only requirement is to download or copy
+and paste the demos and demostuff and make each demo executable with
+"chmod +x demo[1-4]".  Then run the demos with "./demo4".
+
+If there are error messages about not finding sbcl, it might be necessary
+to install that, or to add it to the path.  Installing sbcl is easy, usually
+via the Linux distro.
+
+In the rare circumstance that a particular Linux distro doesn't have sbcl,
+you could install, via sbcl.org, either a binary version, or the sources to
+compile.