Merge pull request #61 from paketo-buildpacks/readme

Update docs for libbs changes

Author: Daniel Mikusa

README.md

@@ -16,17 +16,20 @@ The buildpack will do the following:
   * Contributes Clojure Tools to a layer with all commands on `$PATH`
   * Runs `<CLOJURE_TOOLS_ROOT>/clojure -X:uberjar` to build the application
 * Removes the source code in `<APPLICATION_ROOT>`
-* Expands `<APPLICATION_ROOT>/target/*.jar` to `<APPLICATION_ROOT>`
+* If `$BP_CLJ_BUILT_ARTIFACT` matched a single file
+  * Restores `$BP_CLJ_BUILT_ARTIFACT` from the layer, expands the single file to `<APPLICATION_ROOT>`
+* If `$BP_CLJ_BUILT_ARTIFACT` matched a directory or multiple files
+  * Restores the files matched by `$BP_CLJ_BUILT_ARTIFACT` to `<APPLICATION_ROOT>`
 
 ## Configuration
 
-| Environment Variable            | Description                                                                                                          |
-| ------------------------------- | -------------------------------------------------------------------------------------------------------------------- |
-| `$BP_CLJ_TOOLS_BUILD_ENABLED`   | Configure the arguments to enable tools build.                                                                       |
-| `$BP_CLJ_TOOLS_BUILD_ARGUMENTS` | Configure the arguments to pass to build system.  Defaults to `-T:build uber`.                                       |
-| `$BP_CLJ_DEPS_ARGUMENTS`        | Configure the arguments to pass to build system.  Defaults to `-X:uberjar`.                                          |
-| `$BP_CLJ_BUILT_MODULE`          | Configure the module to find application artifact in.  Defaults to the root module (empty).                          |
-| `$BP_CLJ_BUILT_ARTIFACT`        | Configure the built application artifact explicitly.  Supersedes `$BP_CLJ_BUILT_MODULE`  Defaults to `target/*.jar`. |
+| Environment Variable            | Description                                                                                                                                                                                                              |
+| ------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| `$BP_CLJ_TOOLS_BUILD_ENABLED`   | Configure the arguments to enable tools build.                                                                                                                                                                           |
+| `$BP_CLJ_TOOLS_BUILD_ARGUMENTS` | Configure the arguments to pass to build system. Defaults to `-T:build uber`.                                                                                                                                            |
+| `$BP_CLJ_DEPS_ARGUMENTS`        | Configure the arguments to pass to build system. Defaults to `-X:uberjar`.                                                                                                                                               |
+| `$BP_CLJ_BUILT_MODULE`          | Configure the module to find application artifact in. Defaults to the root module (empty).                                                                                                                               |
+| `$BP_CLJ_BUILT_ARTIFACT`        | Configure the built application artifact explicitly. Supersedes `$BP_CLJ_BUILT_MODULE`. Defaults to `target/*.jar`. Can match a single file, multiple files or a directory. Can be one or more space separated patterns. |
 
 ## Bindings