DOC: Add a contributing guide

the contributing guide include documentation on how to setup the
developer environment. The README has also been updated and it
includes a link to the CONTRIBUTING guide now

CONTRIBUTING.md

@@ -0,0 +1,22 @@
+# Contributing
+
+## Setting up the developer environment
+
+* Ballot is built using the [frappe framework](https://frappeframework.com/docs/user/en/basics)
+  and a basic understanding of it is necessary to contribute to the codebase
+* [Install and setup frappe-bench](https://frappeframework.com/docs/user/en/tutorial/install-and-setup-bench).
+  We recommend using [pipx](https://github.com/pypa/pipx) to install
+  `frappe-bench` and updating the `PATH` variable to include the `.../bin/`
+  folder inside the `pipx`-created Python virtual environment for `frappe-bench`
+* Create a new bench with `bench init ballot`. We recommend storing benches
+  in a single location e.g. `~/frappe-benches`
+* CD into the bench directory i.e. `ballot` and clone the Ballot app using
+  `bench get-app https://github.com/harshtandiya/ballot`. This will clone the
+  Git repository into the `apps/` folder in the bench directory
+* Create a [new site](https://frappeframework.com/docs/user/en/tutorial/create-a-site)
+  using `bench new-site test.ballot`
+* Install the Ballot app on the new site `bench --site test.ballot install-app fossunited`
+* [Access the site conveniently](https://frappeframework.com/docs/user/en/tutorial/create-a-site#access-site-in-your-browser)
+  from your computer using `bench --site test.ballot add-to-hosts`
+* Finally, run `bench start` and access the site in your browser by navigating
+  to `http://test.ballot:<port number>`

README.md

@@ -1,7 +1,14 @@
-## Ballot
+# Ballot
 
-E-Voting system based on Frappe
+Ballot enables communities to organize elections.
 
-#### License
+Built using the Frappe Framework for the FOSS United Platform, Ballot enables
+communities to seek candidatures from interested members of the community via
+customizable forms. Ballot also enables members of the community to endorse
+submissions. In the future, Ballot will also be integrated with a voting
+platform where the community can cast votes.
 
-mit
+## Contributions
+
+Please refer to the [contribution guide](./CONTRIBUTING.md) if you are
+interested in contributing to the codebase.