Flush out README

.gitignore

@@ -1 +1,2 @@
 /*.md
+/releases

README.md

@@ -3,16 +3,22 @@
 This binary compiles Markdown files into HTML. In particular, code blocks of the
 following format:
 
-<pre><code>
+<pre><code># Section Title
+
 ```go
 fmt.Println("hello world")
-```
-</code></pre>
+```</code></pre>
 
 Will be parsed and compiled to HTML using [`chroma`, a tool for generating
 syntax highlights][chroma]. The rest of the file will be compiled from markdown
 to HTML.
 
+```html
+<h1>Section Title</h1>
+<pre class="chroma"><span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">&#34;hello world&#34;</span><span class="p">)</span>
+</pre>
+```
+
 Input can be sent either on standard input or by specifying a filename at the
 command line. All outputs are printed to standard output, where they can be
 redirected to a file:
@@ -35,3 +41,21 @@ that prevents in-memory Markdown compilation.
 
 [error]: https://github.com/russross/blackfriday/issues/403
 [chroma]: https://github.com/alecthomas/chroma
+
+## Installation
+
+Find your target operating system (darwin, windows, linux) and desired bin
+directory, and modify the command below as appropriate:
+
+    curl --silent --location --output=/usr/local/bin/chroma-markdown https://github.com/kevinburke/chroma-markdown/releases/download/0.1/chroma-markdown-linux-amd64 && chmod 755 /usr/local/bin/chroma-markdown
+
+The latest version is 0.1.
+
+If you have a Go development environment, you can also install via source code:
+
+```
+go get -u github.com/kevinburke/chroma-markdown
+```
+
+This should place a `chroma-markdown` binary in `$GOPATH/bin`, so for me,
+`~/bin/chroma-markdown`.