lean into examples

examples/command-line-arguments/command-line-arguments.sh

@@ -0,0 +1,9 @@
+# Build a `command-line-args` binary so that we have
+# the expected program name.
+$ go build command-line-arguments      
+                                    
+
+$ ./command-line-arguments a b c d
+[command-line-arguments a b c d]       
+[a b c d]
+c