Added documentation for new command-line switches.

doc/cheat.txt

@@ -608,8 +608,21 @@ socket/receive-timeout
 
 * Running scsh
 
-scsh [end-option arg1 ...]
-    end-option:	-s script
+scsh [meta-arg] [switch1 ...] [end-option arg1 ...]
+    meta-arg: \ <script-file-name>
+
+    switch: -e <entry-point>	Top-level entry point
+	    -o <structure>	Open structure in current package.
+	    -m <structure>	Switch to package.
+	    -n <new-package>	Switch to new package.
+	    
+	    -lm <module> <file-name>	Load module into config package.
+	    -l <file-name>		Load file into current package.
+	    -dm				Do script module.
+	    -ds				Do script.
+
+    end-option:	-s <script>		Specifies script to load.
+		-c <expression>		Eval <expression> and exit.
     	    	--
 
 scshvm [meta-arg] [vm-options] [end-option arg1 ...]