Update README

README.org

@@ -1,5 +1,10 @@
-Doctests for Lisp
+[[https://github.com/simendsjo/sijo-doctest/actions/workflows/tests.yaml/badge.svg][Build]]
 
+* Doctests for Lisp
+
+See [[file:CHANGELOG.org][CHANGELOG]].
+
+** Installation
 Clone repository
 #+begin_src bash
 git clone [email protected]:simendsjo/sijo-doctest.git ~/quicklisp/local-projects/sijo-doctest
@@ -10,6 +15,7 @@ Load library
 (ql:quickload :sijo-doctest)
 #+end_src
 
+** Usage
 Write some doctests
 #+begin_src lisp
 (defun square (x)
@@ -29,7 +35,7 @@ Test your package
 (sijo-doctest:test-package :your-own-package)
 #+end_src
 
-* Documentation for ~sijo-doctest::test~
+** Documentation for ~sijo-doctest::test~
 
 Warning: This is bound to get out of date, so look at the documentation in the source.