Add documentation concerning benchmark.

README.MD

@@ -2,6 +2,9 @@
 
 A [Mustache](https://mustache.github.io) implementation in pure Kotlin Multiplatform.
 
+To see how it compares to [Mustache.java](https://github.com/spullara/mustache.java)
+look [here](benchmark/README.MD)
+
 # Import from maven
 
 ### Library
@@ -185,7 +188,7 @@ With it, you can create template contexts anywhere in your code.
 
 Let's assume this document:
 
-```mustache
+```handlebars
 {{# greeting }}
 Hello {{ name }},
 {{/ greeting }}

benchmark/README.MD

@@ -0,0 +1,84 @@
+# Benchmark
+
+Benchmarks are run in the JVM and compare time execution of:
+
+- This lib `Ktm`
+- [Mustache.java](https://github.com/spullara/mustache.java)
+
+The test is to parse and render the same document.
+
+1. Simple [[link](src/commonMain/kotlin/net/orandja/ktm/benchmark/Simple.kt)]:
+
+```handlebars
+<b>User:</b> {{ firstName }} {{ lastName }}
+```
+
+2. Complex [[link](src/commonMain/kotlin/net/orandja/ktm/benchmark/Complex.kt)]:
+
+```handlebars
+<b>Hello {{user.firstName}} {{user.lastName}}</b>
+You have just won {{value}} dollars!</br>
+{{#isTaxed}}
+    Today's win is taxed at {{ rate }}%
+{{/isTaxed}}
+```
+
+3. Multiple (x1, x10,
+   x50) [[link](src/commonMain/kotlin/net/orandja/ktm/benchmark/Multiple.kt)]:
+
+```handlebars
+<h1>Last's winners</h1>
+Total number of winners : {{ winnersCount }}
+{{#winners}}
+    <li>
+        {{user.firstName}} {{user.lastName}} <br/>
+        Amount : {{value}}{{#isTaxed}} at {{ rate }}%{{/isTaxed}}
+    </li>
+{{/winners}}
+```
+
+### run
+
+- Smoke: `./gradlew :benchmark:jvmMainSmokeBenchmark`
+- Full: `./gradlew :benchmark:jvmMainBenchmark`
+
+### Results
+
+Overall, performance is good:
+
+- Parsing documents in `Ktm` is faster than `Mustache.java`.
+- Rendering documents in `Ktm` takes longer than `Mustache.java` for Multiple render
+  structures.
+
+<details>
+<summary>On my laptop:</summary>
+
+``` 
+OS: Kubuntu 23.10 x86_64
+Kernel: 6.5.0-15-generic
+CPU: 13th Gen Intel i9-13900H (20) @ 5.200GHz
+openjdk version "17.0.9" 2023-10-17
+```
+
+
+[View benchmark](https://jmh.morethan.io/?source=https://github.com/raw/L-Briand/KTM/master/benchmark/benchmark/Laptop.json)
+
+[raw json file](benchmark/Laptop.json)
+
+</details>
+
+<details>
+<summary>On my mac mini:</summary>
+
+``` 
+Host: Mac mini 2023
+CPU: M2
+OS: macOS Sonoma Version 14.2.1
+java version "21.0.1" 2023-10-17-LTS
+```
+
+[View benchmark](https://jmh.morethan.io/?source=https://github.com/raw/L-Briand/KTM/master/benchmark/benchmark/MacMini.json)
+
+[raw json file](benchmark/MacMini.json)
+
+</details>