added readme

Author: veiled-coder

liteDb/ReadMe.md

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+# LiteDB - A terminal-based Lightweight Database Management System
+LiteDB is a minified yet powerful terminal-based database management system (DBMS) written in Ruby. It's designed to handle SQL queries for database operations with both case-insensitive and case-sensitive support. This lightweight DBMS uses CSV files as its storage backend, making it easy to work with and perfect for small to medium-sized projects.
+
+## Features
+- **SQL Query Support:** LiteDB supports essential SQL query commands like SELECT, INSERT, UPDATE, and DELETE.
+
+- **Case Insensitivity:** You can use SQL queries in either uppercase or lowercase letters, making it user-friendly and flexible.
+
+- **CSV-Based Storage:** LiteDB stores data in CSV files, making it easy to work with and suitable for small-scale projects.
+
+- **Powerful Query Engine:** Utilizes regular expressions, hash manipulation, loops, block arguments, and merge sort algorithms for efficient query processing.
+
+## Installation
+LiteDB requires Ruby to be installed on your system. You can install it using the following steps:
+
+1. Clone this repository to your local machine:
+   
+```
+git clone https://github.com/yourusername/LiteDB.git
+
+cd liteDb
+```
+
+## Usage
+
+1. On the terminal, run:
+   
+```
+ruby my_sqlite_cli.rb  
+```
+2. Interact with LiteDB through the command-line interface (CLI). Here are some sample SQL queries:
+
+**SELECT**
+
+```
+SELECT name,email FROM nba_player_data WHERE name='Matt Zunic'
+```
+
+**INSERT**
+
+*specific columns*
+```
+INSERT INTO nba_player_data (name, year_start, year_end, position) VALUES ('Alaa Abdelnaby34', 1991, 1995, 'F-C')
+```
+*All columns*
+```
+INSERT INTO nba_player_data VALUES (Alaa Abdelnaby34,1991,1995,F-C,6-10,240,"June 24, 1968",Duke University)
+```
+**UPDATE**
+```
+UPDATE nba_player_data SET name = 'Bill Renamed', year_start = '2330' WHERE name = 'Bill Zopf', year_start = '1971'
+```
+**DELETE**
+```
+DELETE FROM nba_player_data WHERE name = 'John'
+```