README.md: Fix typo tunning to tuning (#3078)

Author: waywardmonkeys

README.md

@@ -75,9 +75,9 @@ The following platforms are supported, click each link below for how to build iw
 - [Blog: The WAMR memory model](https://bytecodealliance.github.io/wamr.dev/blog/the-wamr-memory-model/)
 - [Blog: Understand WAMR heaps](https://bytecodealliance.github.io/wamr.dev/blog/understand-the-wamr-heaps/) and [stacks](https://bytecodealliance.github.io/wamr.dev/blog/understand-the-wamr-stacks/)
 - [Blog: Introduction to WAMR running modes](https://bytecodealliance.github.io/wamr.dev/blog/introduction-to-wamr-running-modes/)
-- [Memory usage tunning](./doc/memory_tune.md): the memory model and how to tune the memory usage
+- [Memory usage tuning](./doc/memory_tune.md): the memory model and how to tune the memory usage
 - [Memory usage profiling](./doc/build_wamr.md#enable-memory-profiling-experiment): how to profile the memory usage
-- [Performance tunning](./doc/perf_tune.md): how to tune the performance
+- [Performance tuning](./doc/perf_tune.md): how to tune the performance
 - [Benchmarks](./tests/benchmarks): checkout these links for how to run the benchmarks: [PolyBench](./tests/benchmarks/polybench), [CoreMark](./tests/benchmarks/coremark), [Sightglass](./tests/benchmarks/sightglass), [JetStream2](./tests/benchmarks/jetstream)
 - [Performance and footprint data](https://github.com/bytecodealliance/wasm-micro-runtime/wiki/Performance): the performance and footprint data