feature: Update Dockerfile for simplified Go application build (#5)

## Description

<!-- 
Please do not leave this blank 
This PR [adds/removes/fixes/replaces] the [feature/bug/etc]. 
-->

1. This pull request updates the Dockerfile to simplify the build
process for the Go application

2. This pull request references the existing project description for
additional details on how to use the project:

- Prerequisites (Git, Docker)
- Cloning the Repository (Git commands)
- Building the Image (Docker build command)
- Running the Image (Docker run command)

## What type of PR is this? (check all applicable)

- [x] 🍕 Feature
- [x] 🐛 Bug Fix
- [x] 📝 Documentation Update
- [x] 🧑‍💻 Code Refactor
- [ ] 🔥 Performance Improvements
- [ ] ✅ Test
- [x] 🤖 Build
- [ ] ⏩ Revert

## Related Tickets & Documents
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## Mobile & Desktop Screenshots/Recordings

<!-- Visual changes require screenshots -->



## Steps to QA
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have wrote tests, you can mention that here instead.

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5. Validate you see the thing working
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## Added to documentation?

- [x] 📜 README.md
- [ ] 📓 docs.example.com
- [ ] 🙅 no documentation needed

README.md

@@ -1,2 +1,45 @@
-# Go-Docker-Test
-Test Github Codespaces 
+## Go-Docker-Test
+
+**Description:**
+
+This project is a simple Go application that demonstrates how to build and run a Docker image. It's a great starting point for learning how to containerize Go applications.
+
+**Prerequisites:**
+
+* **Git:** To clone the repository and manage version control.
+* **Docker:** To build and run the Docker image.
+
+**Cloning the Repository:**
+
+1. **Initialize a new local repository:**
+   ```bash
+   git init
+   ```
+2. **Add a remote:**
+   ```bash
+   git remote add origin git@github.com:samucodesh/Go-Docker-Test.git
+   ```
+3. **Clone the repository:**
+   ```bash
+   git pull origin main
+   ```
+
+**Building the Image:**
+
+Navigate to the root directory of the project and run the following command:
+
+```bash
+docker build -t mygoapp .
+```
+
+This will build the Docker image from the Dockerfile in the current directory and tag it as `mygoapp`.
+
+**Running the Image:**
+
+To run the image in a container, use the following command:
+
+```bash
+docker run -p 8080:8080 mygoapp
+```
+
+This will start a container from the `mygoapp` image and map port 8080 of the container to port 8080 of your local machine. You can access your application at `http://localhost:8080`.

dockerfile

@@ -1,7 +1,11 @@
-FROM go:1.20.2
+FROM golang:1.20.2
 
 WORKDIR /app
 
+COPY app/. .
+
+RUN go build -o main main.go
+
 EXPOSE 8080
 
-CMD ["go", "run", "main.go"]
+CMD ["./main"]