docs: update README

Author: eggplants

README.md

@@ -26,22 +26,12 @@ This project checks the [maven repository] once a day for a new version and will
 
 ## Installation
 
-You must have the `java` binary executable available on your PATH for this to work. (JDK 11 is the minimal version supported. To install OpenJDK, please visit <https://adoptium.net/>)
-
-You can install the package either in a virtual environment or globally.
-
 ```sh
 # install the latest version of "openapi-generator-cli"
 pip install openapi-generator-cli
 
 # install a specific version of "openapi-generator-cli"
-pip install openapi-generator-cli==4.3.1
-```
-
-You can also install with [`jdk4py`] instead of `java` binary. (`python>=3.10` is required)
-
-```sh
-pip install openapi-generator-cli[jdk4py]
+pip install openapi-generator-cli==7.14.0
 ```
 
 After installation `openapi-generator-cli` command will be available in your virtual environment or globally depending on your installation.
@@ -67,5 +57,3 @@ Please raise an issue, happy to hear from you :)
 
 [OpenAPITools/openapi-generator]: <https://github.com/OpenAPITools/openapi-generator>
 [maven repository]: <https://mvnrepository.com/artifact/org.openapitools/openapi-generator-cli>
-[`jdk4py`]: <https://github.com/activeviam/jdk4py>
-[official openapi-generator docs]: <https://github.com/OpenAPITools/openapi-generator#3---usage>