diff --git a/_config.yml b/_config.yml
index 571c79e..3a3ac41 100644
--- a/_config.yml
+++ b/_config.yml
@@ -11,6 +11,7 @@ exclude:
   - Gemfile
   - Gemfile.lock
   - _site/
+  - building-locally.md
 
 plugins:
   - jekyll-default-layout
diff --git a/building-locally.md b/building-locally.md
new file mode 100644
index 0000000..4682aa9
--- /dev/null
+++ b/building-locally.md
@@ -0,0 +1,7 @@
+#Building locally
+
+To build locally to preview changes, instally ruby and ruby-bundler, change directory into the cloned repository, and ```bundle install``` to fetch all necessary parts.
+
+Then, ```bundle exec jekyll serve``` to start a local web server, which will note the URL you should point your browser at in its output.
+To enable live previewing as you make changes (just need to reload your browser), add `--incremental`.
+