README.md in tapioca-0.10.2 vs README.md in tapioca-0.10.3

@@ -471,10 +471,12 @@
           [--rbi-max-line-length=N]              # Set the max line length of generated RBIs. Signatures longer than the max line length will be wrapped
                                                  # Default: 120
   -e, [--environment=ENVIRONMENT]                # The Rack/Rails environment to use when generating RBIs
                                                  # Default: development
   -l, [--list-compilers], [--no-list-compilers]  # List all loaded compilers
+          [--app-root=APP_ROOT]                  # The path to the Rails application
+                                                 # Default: .
   -c, [--config=<config file path>]              # Path to the Tapioca configuration file
                                                  # Default: sorbet/tapioca/config.yml
   -V, [--verbose], [--no-verbose]                # Verbose output for debugging purposes
 
 generate RBIs for dynamic methods
@@ -633,10 +635,12 @@
 There are two main parts to the DSL compiler API: `gather_constants` and `decorate`:
 
 * The `gather_constants` class method collects all classes (or modules) that should be processed by this specific DSL compiler.
 * The `decorate` method defines how to generate the necessary RBI definitions for the gathered constants.
 
+Every compiler must declare the type member `ConstantType` in order for Sorbet to understand what the return type of the `constant` attribute reader is. It needs to be assigned the correct type variable matching the type of constants that `gather_constants` returns. This generic variable allows Sorbet to type-check method calls on the `constant` reader in your `decorate` method. See the Sorbet documentation on [generics](https://sorbet.org/docs/generics) for more information.
+
 You can now run the new RBI compiler through the normal DSL generation process (your custom compiler will be loaded automatically by Tapioca):
 
 ```shell
 $ bin/tapioca dsl
 
@@ -820,9 +824,10 @@
   quiet: false
   workers: 2
   rbi_max_line_length: 120
   environment: development
   list_compilers: false
+  app_root: "."
 gem:
   outdir: sorbet/rbi/gems
   file_header: true
   all: false
   prerequire: ''