Rename sample application

examples/callbacks/Makefile

@@ -1,11 +1,14 @@
-all: sample-app
+all: limited-scm-call-from-c sample-app2
 
 sys.o: sys.c
 	cc -g -c sys.c
 
-sample-app: sample-app.scm sys.o
-	cyclone -CLNK sys.o sample-app.scm
+limited-scm-call-from-c: limited-scm-call-from-c.scm sys.o
+	cyclone -CLNK sys.o limited-scm-call-from-c.scm
+
+sample-app2: sample-app2.scm sys.o
+	cyclone -CLNK sys.o sample-app2.scm
 
 .PHONY: clean
 clean:
-	rm -f *.o sample-app.c sample-app
+	rm -f *.o limited-scm-call-from-c.c limited-scm-call-from-c sample-app2.c sample-app2

examples/callbacks/Readme.md

@@ -1 +1 @@
-A sample application to demonstrate how to make simple, limited calls into Scheme code from C. See the code for more information.
+`limited-scm-call-from-c.scm` - A sample application to demonstrate how to make simple, limited calls into Scheme code from C. See the code for more information.