Update README with extra examples

README.md

@@ -3,6 +3,8 @@
 [Sops](https://github.com/mozilla/sops) plugin for the
 [Mise](https://github.com/jdx/mise) version manager.
 
+Based on [asdf-sops](https://github.com/feniix/asdf-sops).
+
 ## Install
 
 ```
@@ -19,6 +21,31 @@ following `.mise.toml`:
 sops = { version = "latest", filename = ".sops.env" }
 ```
 
+If only some variables should be exported, then a name filter (separated by `:`)
+can be applied:
+
+```toml
+[tools]
+sops = {
+  version = "latest",
+  filename = ".sops.env",
+  names = "GITHUB_TOKEN:PYPI_TOKEN"
+}
+```
+
+Note: The names filter can be any
+[bash-compatible regular expression](https://www.gnu.org/software/bash/manual/html_node/Pattern-Matching.html),
+such as `[A-Z]+_TOKEN|AWS_[A-Z_]+` (matches are anchored between `^` and `$` but
+can use `|` for alternation)
+
+Additional filenames can be processed (last wins) by separating entries with
+`:`, e.g.:
+
+```toml
+[tools]
+sops = { version = "latest", filename = ".foo.env:.bar.env" }
+```
+
 ## License
 
 Licensed under the