syntax highlighting in ReadMe options.env

README.md

@@ -140,24 +140,29 @@ If you want to turn off the quota completely, pass `quota=false` instead.
 
 Use the `env` option to inject additional variables to the environment in which the sandboxed code is executed.
 
+```lua
 local msg = sandbox.run('return foo', {env = {foo = 'This is a global var on the the environment'}})
+```
 
 The `env` variable will be used as an "index" by the sandbox environment, but it will *not* be modified at all (changes
 to the environment are thus lost). The only way to "get information out" from the sandboxed environments are:
 
 Through side effects, like writing to a database. You will have to provide the side-effects functions in `env`:
 
+```lua
 local val = 1
 local env = { write_db = function(new_val) val = new_val end }
 sandbox.run('write_db(2)', { env = env })
 assert(val = 2)
+```
 
 Through returned values:
 
+```lua
 local env = { amount = 1 }
 local result = sandbox.run('return amount + 1', { env = env })
 assert(result = 2)
-
+```
 
 Installation
 ============