docs: Add JSR badges

Author: takker99

README.md

@@ -1,5 +1,6 @@
 # scrapbox-userscript-std
 
-UNOFFICIAL standard module for Scrapbox UserScript
+[![JSR](https://jsr.io/badges/@cosense/std)](https://jsr.io/@cosense/std)
+[![test](https://github.com/takker99/scrapbox-userscript-std/workflows/ci/badge.svg)](https://github.com/takker99/scrapbox-userscript-std/actions?query=workflow%3Aci)
 
-[document](https://doc.deno.land/https://raw.githubusercontent.com/takker99/scrapbox-userscript-std/0.14.9/mod.ts)
+UNOFFICIAL standard module for Scrapbox UserScript