fix link formatting

docs/README.md

@@ -6,28 +6,19 @@ Welcome to the documentation for *Bud*, a prototype of Bloom under development.
 The documents here are organized to be read in any order, but you might like to
 try the following:
 
-* [intro.md][intro]: A brief introduction to Bud and Bloom.
-* [getstarted.md][getstarted]: A quickstart to teach you basic Bloom
+* [intro](intro.md): A brief introduction to Bud and Bloom.
+* [getstarted](getstarted.md): A quickstart to teach you basic Bloom
   concepts, the use of `rebl` interactive terminal, and the embedding of Bloom
   code in Ruby via the `Bud` module.
-* [operational.md][operational]: An operational view of Bloom, to provide
+* [operational](operational.md): An operational view of Bloom, to provide
   a more detailed model of how Bloom code is evaluated by Bud.
-* [cheat.md][cheat]: A concise "cheat sheet" to remind you about Bloom syntax.
-* [modules.md][modules]: An overview of Bloom's modularity features.
-* [ruby\_hooks.md][ruby_hooks]: Bud module methods that allow you to
+* [cheat](cheat.md): A concise "cheat sheet" to remind you about Bloom syntax.
+* [modules](modules.md): An overview of Bloom's modularity features.
+* [ruby_hooks](ruby\_hooks.md): Bud module methods that allow you to
   interact with the Bud evaluator from other Ruby threads.
-* [visualizations.md][visualizations]: Overview of the `budvis` and
+* [visualizations](visualizations.md): Overview of the `budvis` and
   `budplot` tools for visualizing Bloom program analyses.
-* [bfs.md][bfs]: A walkthrough of the Bloom distributed filesystem.
-
-[intro]:          /docs/intro.md
-[getstarted]:     /docs/getstarted.md
-[operational]:    /docs/operational.md
-[cheat]:          /docs/cheat.md
-[modules]:        /docs/modules.md
-[ruby_hooks]:     /docs/ruby_hooks.md
-[visualizations]: /docs/visualizations.md
-[bfs]:            /docs/bfs.md
+* [bfs](bfs.md): A walkthrough of the Bloom distributed filesystem.
 
 In addition, the [bud-sandbox](http://github.com/bloom-lang/bud-sandbox) GitHub
 repository contains lots of useful libraries and example programs built using