Add note on dependencies + how to run without using npm scripts (using shebang)

readme.md

@@ -1,18 +1,26 @@
 # Paper computer simulator experiment
 
+## Dependencies
+
+Node.js
+
 ## Run the assembler/simulator
 
 Assemble source code:  
-```npm run asm source_code.asm```
+- ```npm run asm source_code.asm```
+- or ```./run-assembler run source_code.asm```
 
 Assemble source code, with debug output:  
-```npm run asmdebug source_code.asm```
+- ```npm run asmdebug source_code.asm```
+- or ```./run-assembler debug source_code.asm```
 
 Assemble and run, with animated display of screen memory:  
-```npm run rundisplay source_code.asm```
+- ```npm run rundisplay source_code.asm```
+- or ```./run-cpu run source_code.asm```
 
 Assemble and run, with debug output:  
-```npm run rundebug source_code.asm```
+- ```npm run rundebug source_code.asm```
+- or ```./run-cpu debug source_code.asm```
 
 ## Instruction set