add installation instructions page

_extras/install_instructions.md

@@ -0,0 +1,26 @@
+---
+layout: page
+title: Installation Instructions
+permalink: /install_instructions/index.html
+tools:
+ - editor
+ - git
+ - openrefine
+ - python
+ - r
+ - shell
+ - sql
+ - videoconferencing
+---
+
+{% comment %}
+To add a new set of installation instructions to this page:
+1. Add the instructions (in HTML) as a new file in the `_includes` folder
+2. Add the name of that file, without the .html extension,
+ to the `tools` array in the YAML front matter of this page
+ (i.e. between the --- above).
+{% endcomment %}
+
+{% for tool in page.tools %}
+{% include install_instructions/{{tool}}.html %}
+{% endfor %}