added QLever info to introduction file

Author: Abhinandan707

src/content/docs/guide/index.mdx

@@ -10,10 +10,12 @@ Knowledge graphs are structured representations of knowledge, enabling the linki
 ## Importance and Applications of Knowledge Graphs
 Knowledge graphs enhance data interoperability, facilitate advanced analytics, and support intelligent applications like virtual assistants and predictive modeling. They are used in industries such as healthcare, finance, and e-commerce.
 
-## Overview of the Software Solutions
+## Overview of the Software Solutions   
 **Virtuoso**: A cross-platform universal server that integrates web, file, and database server functionalities with native XML storage and universal data access middleware.
 
 **Apache Jena**: A Java framework for building Semantic Web and Linked Data applications, offering tools for data handling, ontology management, and SPARQL querying.
 
+**QLever**: A high-performance query engine tailored for SPARQL, optimized to handle large RDF datasets efficiently. It integrates full-text search capabilities, making it particularly suitable for semantic search tasks and knowledge graph exploration.
+
 ## Purpose and Scope of the Guidelines
 These guidelines provide step-by-step instructions, educational videos, and best practices for creating and hosting knowledge graphs using Virtuoso and Apache Jena. They are intended to assist users in setting up, configuring, and utilizing these software solutions effectively.