Update readme.md

readme.md

@@ -13,30 +13,61 @@ some statistics about your package-lock.json
 $ npm install -g lockspot
 ```
 
+## universal options
+
+### --file=\<path>
+the package-lock.json to operate on.
+it tries to do the right thing if you leave this blank:
+• if you're piping something in on `STDIN`, it'll use that
+• if there's a package-lock in the dir, it'll use that
+• fall back to `STDIN`
+you can use `-` to force consuming `STDIN`
+
 ## commands
 
 ### depcount
 
-print the number of version of each dependency in the tree
+count the number of different versions of each dependency in the tree
 
 #### usage
 
 ```sh
-$ lockspot depcount < package.json
+$ <package-lock.json lockspot depcount 
 ```
 
 #### options
 
-##### --file=\<path>
-the package-lock.json to operate on.
-it tries to do the right thing if you leave this blank:
-• if you're piping something in on `STDIN`, it'll use that
-• if there's a package-lock in the dir, it'll use that
-• fall back to `STDIN`
-you can use `-` to force consuming `STDIN`
+##### --min=\<int>
+only print dependencies that have more than this number of versions in the tree
 
-#### --min=\<int>
-only print dependencies that have more than this number of versions.
+##### --prod
+only count production (non-dev) dependencies
 
-#### --sort=\<dont|count|name>
+##### --pattern=\<pattern>
+only count dependencies whose names match this pattern
+
+##### --sort=\<dont|count|name>
 how to sort the dependencies. `dont` is the default.
+
+### flat
+
+exit with a failure if the tree is not flat
+
+#### usage
+
+```sh
+$ <package-lock.json lockspot flat
+```
+
+#### options
+
+##### --prod
+only count production (non-dev) dependencies
+
+##### --pattern=\<pattern>
+only count dependencies whose names match this pattern
+
+<!--
+##### --origami
+set `production` to `true`, and `pattern` to `/@financial-times\/o-.*/`.
+-->