Update readme (#9)

* Add prerequisites and adding content sections

Signed-off-by: Tracy Kuhrt <tracy.a.kuhrt@accenture.com>

README.md

@@ -2,12 +2,58 @@
 
 This repos serves as a template for creating documentation for Hyperledger projects. The template utilizes MkDocs (documentation at [mkdocs.org](https://www.mkdocs.org)) and the theme Material for MkDocs (documentation at [Material for MkDocs](https://squidfunk.github.io/mkdocs-material/). Material adds a number of extra features to MkDocs, and Hyperledger repositories can take advantage of the theme's [Insiders](https://squidfunk.github.io/mkdocs-material/insiders/) capabilities.
 
-## Commands
+[Material for MkDocs]: https://squidfunk.github.io/mkdocs-material/
+[Mike]: https://github.com/jimporter/mike
+
+## Prerequisites
+
+To test the documents and update the published site, the following tools are needed:
+
+- A Bash shell
+- git
+- Python 3
+- The [Material for Mkdocs] theme.
+- The [Mike] MkDocs plugin for publishing versions to gh-pages.
+  - Not used locally, but referenced in the `mkdocs.yml` file and needed for
+    deploying the site to gh-pages.
+
+### git
+`git` can be installed locally, as described in the [Install Git Guide from GitHub](https://github.com/git-guides/install-git).
+
+### Python 3
+`Python 3` can be installed locally, as described in the [Python Getting Started guide](https://www.python.org/about/gettingstarted/).
+
+### Mkdocs
+
+The Mkdocs-related items can be installed locally, as described in the [Material
+for Mkdocs] installation instructions. The short, case-specific version of those
+instructions follow:
+
+```bash
+pip install -r requirements.txt
+```
+
+### Verify Setup
+
+To verify your setup, check that you can run `mkdocs` by running the command `mkdocs --help` to see the help text.
+
+## Useful MkDocs Commands
+
+The commands you will usually use with `mkdocs` are:
 
 * `mkdocs serve` - Start the live-reloading docs server.
 * `mkdocs build` - Build the documentation site.
 * `mkdocs -h` - Print help message and exit.
 
+## Adding Content
+
+The basic process for adding content to the site is:
+
+- Create a new markdown file under the `docs` folder
+- Add the new file to the table of contents (`nav` section in the `mkdocs.yml` file)
+
+If you are using this as a template for creating your own documentation, please see [the instructions for customization](./docs/index.md).
+
 ## Repository layout
 
     mkdocs.yml    # The configuration file.