Added rockspec and some docs.

Author: bungle

README.md

@@ -1,6 +1,6 @@
 # lua-resty-scrypt
 
-LuaJIT FFI-based scrypt library for OpenResty.
+`lua-resty-scrypt` is a scrypt (password) hashing library for OpenResty.
 
 ## Hello World with lua-resty-scrypt
 
@@ -13,6 +13,35 @@ local valid  = scrypt.check("My Guess",  hash)  -- valid holds false
 local n,r,p  = scrypt.calibrate()               -- returns n,r,p calibration values
 ```
 
+## Installation
+
+Just place [`scrypt.lua`](https://github.com/bungle/lua-resty-scrypt/blob/master/lib/resty/scrypt.lua) somewhere in your `package.path`, preferably under `resty` directory. If you are using OpenResty, the default location would be `/usr/local/openresty/lualib/resty`.
+
+### Compiling and Installing Scrypt C-library
+
+These are just rudimentary notes. Better installation instructions will follow:
+
+1. First download Scrypt from here: https://github.com/bungle/lua-scrypt
+2. Run `make`
+4. Place `scrypt.so` in Lua's `package.cpath` (or modify `scrypt.lua` and point `ffi_load("scrypt")` with full path to `scrypt.so`, e.g. `local json = ffi_load("/usr/local/lib/lua/5.1/scrypt.so")`).
+
+### Using LuaRocks or MoonRocks
+
+If you are using LuaRocks >= 2.2:
+
+```Shell
+$ luarocks install lua-resty-scrypt
+```
+
+If you are using LuaRocks < 2.2:
+
+```Shell
+$ luarocks install --server=http://rocks.moonscript.org moonrocks
+$ moonrocks install lua-resty-scrypt
+```
+
+MoonRocks repository for `lua-resty-scrypt`  is located here: https://rocks.moonscript.org/modules/bungle/lua-resty-scrypt.
+
 ## Lua API
 
 #### string scrypt.crypt(opts)

lua-resty-scrypt-dev-1.rockspec

@@ -0,0 +1,21 @@
+package = "lua-resty-scrypt"
+version = "dev-1"
+source = {
+    url = "git://github.com/bungle/lua-resty-scrypt.git"
+}
+description = {
+    summary = "LuaJIT FFI-based scrypt library for OpenResty.",
+    detailed = "lua-resty-scrypt is a scrypt (password) hashing library for OpenResty.",
+    homepage = "https://github.com/bungle/lua-resty-scrypt",
+    maintainer = "Aapo Talvensaari <[email protected]>",
+    license = "BSD"
+}
+dependencies = {
+    "lua >= 5.1"
+}
+build = {
+    type = "builtin",
+    modules = {
+        ["resty.scrypt"]          = "lib/resty/scrypt.lua"
+    }
+}