Update README.md (#46)

MPACT-ORG · Jun 20, 2024 · ad5f10a · ad5f10a
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diff --git a/README.md b/README.md
@@ -77,6 +77,12 @@ cmake -GNinja -Bbuild \
   externals/torch-mlir/externals/llvm-project/llvm
 ```
 
+To speed up the build process, you can set up [ccache](https://ccache.dev/download.html) and add the following flags to the command above:
+
+```shell
+-DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+```
+
 Run the following to ensure the MPACT compiler builds and runs correctly.
 
 ```shell