Added a reference to JSR (#1054)

Author: taras

docs/installation.mdx

@@ -1,4 +1,4 @@
-Effection can be used in any JavaScript environment including Deno, Node and browsers. Effection packages are side-effect free and do not pollute your environment in any way, making it compatible with most JavaScript runtimes.
+**Effection** can be used in any JavaScript environment including Deno, Node and browsers. Effection packages are side-effect free and do not pollute your environment in any way, making it compatible with most JavaScript runtimes.
 If you encounter obstacles integrating with your environment, please create a [GitHub Issue in the Effection repository](https://github.com/thefrontside/effection/issues/new).
 
 ## Node.js & Browser
@@ -15,7 +15,7 @@ yarn add effection
 
 ## Deno
 
-Effection has first class support for Deno because it is developed with [Deno](https://deno.land). Releases are published to [https://deno.land/x/effection](https://deno.land/x/effection). For example, to import the `main()` function:
+Effection has first class support for Deno because it is developed with [Deno](https://deno.land). Releases are published to [JSR](https://jsr.io/@effection/effection) and [https://deno.land/x/effection](https://deno.land/x/effection). For example, to import the `main()` function:
 
 ```ts
 import { main } from "jsr:@effection/effection@3";