Adding remarks regarding the Java 20 requirement (simdjson#16)

lemire · web-flow · commit 304c8ec57d75 · 2023-09-06T21:20:22.000+02:00
diff --git a/README.md b/README.md
@@ -53,6 +53,8 @@ Please remember about specifying the desired version.
 Note that simdjson-java follows the [SemVer specification](https://semver.org/), which means, for example, that a major 
 version of zero indicates initial development, so the library's API should not be considered stable.
 
+We require Java 20 or better.
+
 ## Benchmarks
 
 To run the JMH benchmarks, execute the following command:
@@ -90,3 +92,5 @@ Environment:
 To reproduce the benchmark results, execute the following command:
 
 ```./gradlew jmh -Pjmh.includes='.*ParseAndSelectBenchmark.*'```
+
+The benchmark may take several minutes. Remember that you need Java 20 or better.
