docs(std): version all imports in README (#7442)

Use $STD_VERSION in std/ README files to automatically
display proper version.

1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index 2e485a365..c13040aef 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ deno run https://deno.land/std/examples/welcome.ts
 Or a more complex one:
 
 ```sh
-import { serve } from "https://deno.land/std@0.69.0/http/server.ts";
+import { serve } from "https://deno.land/std@$STD_VERSION/http/server.ts";
 const s = serve({ port: 8000 });
 console.log("http://localhost:8000/");
 for await (const req of s) {