Fix workflow & update README

README.md

@@ -3,3 +3,25 @@
 [![Build and Test Cosmos CLI](https://github.com/developers-cosmos/cosmos-cli/actions/workflows/build.yaml/badge.svg)](https://github.com/developers-cosmos/cosmos-cli/actions/workflows/build.yaml)
 
 Cosmos CLI is a versatile command-line tool developed by Developers-Cosmos, simplifying the installation, setup, and management of a diverse range of projects and applications offered by our organization, spanning various languages and domains. Streamline your development workflow and access our projects effortlessly with Cosmos CLI.
+
+## Prerequisites
+
+Before you can use this project, make sure you have the following software installed:
+
+- **Nix Package Manager**: Nix is a powerful package manager that this project relies on for managing dependencies and development environments.
+You can install Nix by following the instructions for your operating system:
+  - [Install Nix](https://nixos.org/download)
+
+# Demo [WIP]
+
+Use the below commands to pull a very basic version of cosmos-cli.
+
+```shell
+nix develop github:developers-cosmos/cosmos-cli -c cosmos
+```
+
+The above command produces the following output.
+
+```shell
+[Cosmos CLI]: Hello from Developers Cosmos!
+```

tools/build.sh

@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 
-bazelisk build //src:hello-world
+bazelisk build //src:cosmos

tools/run.sh

@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 
-bazelisk run //src:hello-world
+bazelisk run //src:cosmos