diff --git a/readme.md b/readme.md
index c4d58f6..8b0f0c0 100644
--- a/readme.md
+++ b/readme.md
@@ -1,8 +1,8 @@
-Merges several Gitea organizations' maven repositories to one path.
+Merges several Gitea organizations' maven/cargo repositories to one path.
 
 ## usage
 ```shell
-./maven-on-gitea-redirector-v0.1 config.json
+./maven-on-gitea-redirector-v0.2 config.json
 ```
 
 ## config
@@ -22,4 +22,19 @@ Merges several Gitea organizations' maven repositories to one path.
     "LanguageUtilities"
   ]
 }
+```
+
+
+## Additional steps
+### Cargo ([sparse](https://doc.rust-lang.org/cargo/reference/registry-index.html#index-format))
+
+Client checks first `/config.json`, which contains paths to API roots. Since each organization has its own config,
+it should be manually redirected (by `nginx` etc.) to custom config which contains paths to wrapper 
+instead of org registry:
+```json
+{
+  "dl": "https://cargo.landgrafhomyak.ru/api/v1/crates/",
+  "api": "https://cargo.landgrafhomyak.ru/",
+  "auth-required": false
+}
 ```
\ No newline at end of file