chore: fix link in README.md (#931)

Author: wdscxsj

README.md

@@ -13,7 +13,7 @@ See user documentation at https://templ.guide
 <a href="https://pkg.go.dev/github.com/a-h/templ"><img src="https://pkg.go.dev/badge/github.com/a-h/templ.svg" alt="Go Reference" /></a>
 <a href="https://xcfile.dev"><img src="https://xcfile.dev/badge.svg" alt="xc compatible" /></a>
 <a href="https://raw.githack.com/wiki/a-h/templ/coverage.html"><img src="https://github.com/a-h/templ/wiki/coverage.svg" alt="Go Coverage" /></a>
-<a href="https://goreportcard.com/report/github.com/a-h/templ"><img src="https://goreportcard.com/badge/github.com/a-h/templ" alt="Go Report Card" /></a<
+<a href="https://goreportcard.com/report/github.com/a-h/templ"><img src="https://goreportcard.com/badge/github.com/a-h/templ" alt="Go Report Card" /></a>
 </p>
 
 ## Tasks