Update README.md

Author: sashirestela

README.md

@@ -11,12 +11,12 @@ Java lightweight validator.
 - [Description](#-description)
 - [Installation](#-installation)
 - [Constraints](#-constraints)
-  - [@Required](#@required)
-  - [@Range](#@range)
-  - [@Size](#@size)
-  - [@Extension](#@extension)
-  - [@ObjectType](#@objecttype)
-  - [@Valid](#@valid)
+  - [@Required](#required)
+  - [@Range](#range)
+  - [@Size](#size)
+  - [@Extension](#extension)
+  - [@ObjectType](#objecttype)
+  - [@Valid](#valid)
 - [Create New Constraint](#-create-new-constraint)
   - [New Constraint Annotation](#new-constraint-annotation)
   - [New Validator Class](#new-validator-class)
@@ -327,4 +327,4 @@ Please read our [Contributing](CONTRIBUTING.md) guide to learn and understand ho
 
 ## 📄 License
 
-This library is licensed under the MIT License. See the [LICENSE](https://github.com/sashirestela/slimvalidator/blob/main/LICENSE) file for more information.
+This library is licensed under the MIT License. See the [LICENSE](https://github.com/sashirestela/slimvalidator/blob/main/LICENSE) file for more information.