Implemented links

README.md

@@ -4,6 +4,7 @@ Markdown renderer.
 
 ## Features
 
+- Links
 - Headers
 - Paragraphs
 
@@ -17,7 +18,6 @@ go get git.akyoto.dev/go/markdown
 
 ```go
 html := markdown.Render("# Header")
-fmt.Println(html)
 ```
 
 ## Tests
@@ -26,14 +26,16 @@ fmt.Println(html)
 PASS: TestEmpty
 PASS: TestParagraphs
 PASS: TestHeader
+PASS: TestLink
 PASS: TestCombined
+PASS: TestSecurity
 coverage: 100.0% of statements
 ```
 
 ## Benchmarks
 
 ```
-BenchmarkSmall-12        2187232               544.9 ns/op           296 B/op          9 allocs/op
+BenchmarkSmall-12        2019103               591.4 ns/op           296 B/op          9 allocs/op
 ```
 
 ## License