added link to rdf4j 5.0.3 upcoming improvements

Author: VladimirAlexiev

README.md

@@ -30,7 +30,7 @@ Semantic shapes are frequently described using the SHACL or ShEx language.
 ## SHACL Validators
 
 - [Apache Jena SHACL](https://github.com/apache/jena/tree/main/jena-shacl) <img alt="Maven Central Version" src="https://img.shields.io/maven-central/v/org.apache.jena/jena-shacl" align="top"> <img alt="Maven Central Last Update" src="https://img.shields.io/maven-central/last-update/org.apache.jena/jena-shacl" align="top"> - Supports SHACL Core, SHACL-SPARQL; [docs](https://jena.apache.org/documentation/shacl/index.html); `Apache-2.0` license; `Java`.
-- [RDF4J SHACL Engine](https://github.com/eclipse-rdf4j/rdf4j/tree/main/core/sail/shacl) <img alt="Maven Central Version" src="https://img.shields.io/maven-central/v/org.eclipse.rdf4j/rdf4j-shacl" align="top"> <img alt="Maven Central Last Update" src="https://img.shields.io/maven-central/last-update/org.eclipse.rdf4j/rdf4j-shacl" align="top"> - Supports SHACL Core (without some property paths), SHACL-SPARQL, incremental validation; [docs](https://rdf4j.org/documentation/programming/shacl/); `BSD-3-Clause` license; `Java`.
+- [RDF4J SHACL Engine](https://github.com/eclipse-rdf4j/rdf4j/tree/main/core/sail/shacl) <img alt="Maven Central Version" src="https://img.shields.io/maven-central/v/org.eclipse.rdf4j/rdf4j-shacl" align="top"> <img alt="Maven Central Last Update" src="https://img.shields.io/maven-central/last-update/org.eclipse.rdf4j/rdf4j-shacl" align="top"> - Supports SHACL Core (without some property paths, see [5.0.3 improvements](https://github.com/Sveino/Inst4CIM-KG/issues/95#issuecomment-2437819932)), SHACL-SPARQL, incremental validation; [docs](https://rdf4j.org/documentation/programming/shacl/); `BSD-3-Clause` license; `Java`.
 - [TopBraid SHACL API](https://github.com/TopQuadrant/shacl) <img alt="Maven Central Version" src="https://img.shields.io/maven-central/v/org.topbraid/shacl" align="top"> <img alt="Maven Central Last Update" src="https://img.shields.io/maven-central/last-update/org.topbraid/shacl" align="top"> - Supports SHACL Core, SHACL-SPARQL, SHACL rules; based on Jena; `BSD-3-Clause` license; `Java`.
   - [RDF validator](https://www.itb.ec.europa.eu/shacl/any/upload) - The EU Interoperability Test Bed (ITB) playground based on TQ API; validate any RDF with SHACL Shapes.
   - [SHACL shapes validator](https://www.itb.ec.europa.eu/shacl/shacl/upload) - The EU Interoperability Test Bed (ITB) playgrounds based on TQ API; validate SHACL Shapes itself.