add more details to the documentation

Author: clmath

docs/Promise.md

@@ -8,6 +8,9 @@ title: requirejs-dplugins/Promise
 `requirejs-dplugins/Promise` provides an ES6 Promise implementation. If the browser does not provide it, the
 plugin will load the [lie](https://github.com/calvinmetcalf/lie) implementation.
 
+If RequireJS `baseUrl` is not the `bower_components` directory, the path to the `lie` directory should be set
+using RequireJS `paths` configuration.
+
 ## Sample
 ```
 require(["requirejs-dplugins/Promise!"], function(Promise){

docs/css.md

@@ -34,6 +34,7 @@ define(["requirejs-dplugins/css!myproj/comp.css"], function (){
 
 ## Build
 
-During the build, this plugin will collect all the CSS files required and create a layer with all the CSS
-files concatenated. This layer will be optimized using
-[clean-css](https://github.com/jakubpawlowicz/clean-css) if it is installed.
+To build a CSS layer containing all the CSS files required, [clean-css](https://github.com/jakubpawlowicz/clean-css)
+needs to be installed in the `node_modules` directory of the application.
+Clean-css should be added to the application `devDependencies` property in `package.json` so it is
+automatically installed with `npm install`.