Add readme for all services (#7)

* Added readme for each service

- mentions prerequisites to run the service
- includes instructions to run locally
- points to deploy file for that service

* added highlight for cucumber commands

activity-tracking/readme.md

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+# Actvity Tracking service
+
+This is the Activity Tracking microservice for the MLA Fitness tracker app.
+
+### Prerequisites
+
+- Node.js
+- MongoDB
+- npm or yarn
+
+
+#### Running Node.js Activity Tracker locally
+
+```sh
+cd activity-tracking
+npm install
+nodemon server
+```
+
+#### spin up MongoDB without docker-compose:
+```
+docker run --name mongodb -d -p 27017:27017 -v mongodbdata:/data/db mongo:latest
+```
+
+### Connect to MongoDB
+
+```
+mongosh -u root -p cfgmla23 --authenticationDatabase admin --host localhost --port 27017
+```
+
+show registered activities:
+```
+db.exercises.find()
+```
+
+show registered users:
+```
+db.users.find()
+```
+
+
+## Deployment
+The application is containerized using Docker and is configured for AWS deployment. A GitHub Actions pipeline is configured for CI/CD at [deploy-activity-tracking](../.github/workflows/deploy-ActivityTracking.yml) .

analytics/readme.md

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+# Analytics service
+
+This is the Analytics microservice for the MLA Fitness tracker app.
+
+### Prerequisites
+
+- Python
+- Flask
+- MongoDB
+
+
+#### Running Flask application locally 
+
+```sh
+cd analytics
+flask run -h localhost -p 5050
+```
+
+#### spin up MongoDB without docker-compose:
+```
+docker run --name mongodb -d -p 27017:27017 -v mongodbdata:/data/db mongo:latest
+```
+
+### Connect to MongoDB
+
+```
+mongosh -u root -p cfgmla23 --authenticationDatabase admin --host localhost --port 27017
+```
+
+show registered activities:
+```
+db.exercises.find()
+```
+
+
+## Deployment
+The application is containerized using Docker and is configured for AWS deployment. A GitHub Actions pipeline is configured for CI/CD at [deploy-analytics](../.github/workflows/deploy-Analytics.yml) .

authservice/readme.md

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+## Authentication service
+
+This is the Authentication microservice for the MLA Fitness tracker app.
+
+### Prerequisites
+
+- Java 8
+- MongoDB
+- node
+- npm 
+- cucumber
+
+
+#### Running Java application locally
+
+```sh
+cd authservice
+./gradlew clean build
+./gradlew bootRun
+```
+
+#### spin up MongoDB without docker-compose:
+```
+docker run --name mongodb -d -p 27017:27017 -v mongodbdata:/data/db mongo:latest
+```
+
+### Connect to MongoDB
+
+```
+mongosh -u root -p cfgmla23 --authenticationDatabase admin --host localhost --port 27017
+```
+
+show registered users:
+```
+db.users.find()
+```
+
+### Running Cucumber tests
+
+```sh
+cd authservice 
+
+# check if node and npm are installed
+node -v
+npm -v
+
+# install cucumber
+npm install --save-dev @cucumber/cucumber
+
+# run tests
+npx cucumber-js
+
+```
+
+## Deployment
+The application is containerized using Docker and is configured for AWS deployment. A GitHub Actions pipeline is configured for CI/CD at [deploy-authservice](../.github/workflows/deploy-AuthService.yml) .

frontend/readme.md

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+# MLA Fitness Tracker Frontend
+
+This is the frontend to the Activity tracker app.
+
+### Prerequisites
+
+- Node.js
+- npm or yarn
+
+
+#### Start the Frontend locally
+
+```sh
+cd frontend
+npm install
+npm start
+```
+
+
+## Deployment
+The application is containerized using Docker and is configured for AWS deployment. A GitHub Actions pipeline is configured for CI/CD at [deploy-frontend](../.github/workflows/deploy-Frontend.yml) .