doc: update conditions, add "deno" and "types"

doc/api/packages.md

@@ -612,17 +612,23 @@ The following condition definitions are currently endorsed by Node.js:
 * `"browser"` - any environment which implements a standard subset of global
   browser APIs available from JavaScript in web browsers, including the DOM
   APIs.
+* `"deno"` - indicates a variation for the Deno platform.
 * `"development"` - can be used to define a development-only environment
   entry point. _Must always be mutually exclusive with `"production"`._
 * `"production"` - can be used to define a production environment entry
   point. _Must always be mutually exclusive with `"development"`._
+* `"source"` - indicates the original .js source file without minification
+  or bundling optimizations, useful for development and debugging workflows.
+* `"types"` - can be used by typing systems to resolve the typing file for
+  the given export, possible since the interface should be the same for all
+  variations.
 
 The above user conditions can be enabled in Node.js via the
 [`--conditions` flag][].
 
-Platform specific conditions such as `"deno"`, `"electron"`, or `"react-native"`
-may be used, but while there remain no implementation or integration intent
-from these platforms, the above are not explicitly endorsed by Node.js.
+Platform specific conditions such as `"electron"`, or `"react-native"` may
+be used, but while there remain no implementation or integration intent
+from these platforms, we do not yet explicitly recommend them.
 
 New conditions definitions may be added to this list by creating a pull request
 to the [Node.js documentation for this section][]. The requirements for listing