add some info on modules

docs/generate.py

@@ -162,6 +162,11 @@ def print_af(lf, af):
 for lib in lualibs:
     print('### `'+lib+'`')
 
+print('## Modules')
+print("""You can load modules with `require "mymod"` or `require "mydir.mymod"`, just put `mymod.lua` in the same directory the script is, or in `mydir/` to keep things organized.
+
+Check the [Lua tutorial](http://lua-users.org/wiki/ModulesTutorial) or examples how to actually make modules.""")
+
 print('## Global variables')
 print("""These variables are always there to use.""")
 for lf in funcs:

docs/script-api.md

@@ -12,6 +12,10 @@ The following Lua libraries and their functions are available. You can read more
 ### `string`
 ### `table`
 ### `package`
+## Modules
+You can load modules with `require "mymod"` or `require "mydir.mymod"`, just put `mymod.lua` in the same directory the script is, or in `mydir/` to keep things organized.
+
+Check the [Lua tutorial](http://lua-users.org/wiki/ModulesTutorial) or examples how to actually make modules.
 ## Global variables
 These variables are always there to use.
 ### [`meta`](https://github.com/spelunky-fyi/overlunky/search?l=Lua&q=meta)