Add visual code block demarcations to sloum's article.

zine/issue002/sloum_getting-started-with-programming.txt

@@ -181,9 +181,11 @@ them since passing in paths to files or other input will quickly become useful.
 I do not know much about the Windows command line, so from here on I will be
 talking about Linux/BSD/OSX. If you enter:
 
+---
 cd ~
 mkdir programming_practice
 cd programming_practice
+---
 
 You will move directories to your home directory. The program `cd` takes a file
 path as an argument. In this case the `~` is something the shell (the actual
@@ -193,7 +195,9 @@ home folder called `programming_practice` and then `cd` into it.
 
 You can always go directly to this folder with:
 
+---
 cd ~/programming_practice
+---
 
 Then you can run `ls` to see any files or subfolders you may want to work on/in.
 
@@ -255,15 +259,19 @@ type into a file for each of the three languages I recommended above:
 Create a file named `hello.py` in the current directory (`nano hello.py`, for
 example) and enter the following text:
 
+---
 def say_hello():
 	name = input("What is your name? ")
 	print("Hello " + name)
 
 say_hello()
+---
 
 Then run the following in your terminal/shell:
 
+---
 python3 ./hello.py
+---
 
 If it doesn't work, make sure you have Python 3 installed (type `python3
 --version` at the shell and see if you get a Python version number printed. It
@@ -279,6 +287,7 @@ the file is using the `cd` command. Then try running the program again.
 
 Create a file named `hello.lua` and enter the following text:
 
+---
 function say_hello()
 	io.write("What is your name? ")
 	io.flush()
@@ -287,10 +296,13 @@ function say_hello()
 end
 
 say_hello()
+---
 
 Then run the following in your terminal/shell:
 
+---
 lua ./hello.lua
+---
 
 If it doesn't work, make sure you have Lua installed (type `lua -v` at the
 shell, if you get a version number printed then you are good to go, if not then
@@ -310,6 +322,7 @@ Create a directory for the program by running `mkdir go_hello && cd go_hello` at
 your shell/terminal. Then create a file named `main.go` and enter the following
 text:
 
+---
 package main
 
 import (
@@ -322,11 +335,14 @@ func main() {
 	fmt.Scanln(&name)
 	fmt.Printf("Hello %s", name)
 }
+---
 
 Then run the following in your terminal/shell:
 
+---
 go build
 ./go_hello
+---
 
 You may notice that running the program is a little different here. We call `go
 build` first. This compiles the program into an executable file. We then run