Amended dockerfile, dockerfile-ci to use nodejs LTS version

Amended Readme.md removing unnecessary brackets and update Nodejs to Nodejs LTS
Amended GitHub Actions node.js.yml to use nodejs lts version 14 (As of 26 May 2021 as currently there are still some issues supporting `lts` alias  in `setup-node` GitHub Action which is a known issue: actions/setup-node#26 actions/setup-node#257)

.github/workflows/node.js.yml

@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [14.x]
 
     steps:
       - uses: actions/checkout@v2.3.4

Dockerfile

@@ -2,7 +2,7 @@
 # With comments to aid in my learning of docker.
 
 # To use official nodejs base docker image.
-FROM node:12
+FROM node:lts
 
 # The working directory where any subsequent instructions in the Dockerfile will be executed on.
 WORKDIR /app

Dockerfile-ci

@@ -2,7 +2,7 @@
 # With comments to aid in my learning of docker.
 
 # To use official nodejs base docker image.
-FROM node:12
+FROM node:lts
 
 # The working directory where any subsequent instructions in the Dockerfile will be executed on.
 WORKDIR /app

README.md

@@ -2,7 +2,7 @@
 
 [![MIT License](https://img.shields.io/badge/license-MIT-blue)](https://github.com/learnsoftwaredevelopment/SoftwareRepository/blob/master/LICENSE)
 ![GitHub Node.js CI](https://github.com/learnsoftwaredevelopment/SoftwareRepository/workflows/Node.js%20CI/badge.svg?branch=master)
-![App Container CI](https://github.com/learnsoftwaredevelopment/SoftwareRepository/actions/workflows/app-test-container-no-docker-cache.yml/badge.svg?branch=master)]
+![App Container CI](https://github.com/learnsoftwaredevelopment/SoftwareRepository/actions/workflows/app-test-container-no-docker-cache.yml/badge.svg?branch=master)
 
 ## Introduction
 
@@ -169,7 +169,7 @@ A list of the technologies and frameworks used in this project
 
 ### Backend Technologies
 
-- Node.js (Node 12)
+- Node.js (Node.js LTS)
 - MongoDB
 - Firebase Authentication