readme: use cmake -S instead of undocumented -H

undocumented -H for source directory was replaced
by documented -S and -H is now an alias to --help

diff --git a/README.md b/README.md
index 7a0b539aaf91bfc9bcd9d52ae997cf1989f1a2c3..9592b437acecbafc6bd4a7dec3cc918fd5aa806f 100644 (file)
--- a/README.md
+++ b/README.md
@@ -127,7 +127,7 @@ This project uses the usual CMake workflow:
 #### Debug build
 
 ```sh
-cmake -G "Unix Makefiles" -H. -Bbuild -DCMAKE_BUILD_TYPE=Debug
+cmake -G "Unix Makefiles" -S. -Bbuild -DCMAKE_BUILD_TYPE=Debug
 cmake --build build -- -j$(nproc)
 ```
 
@@ -135,7 +135,7 @@ cmake --build build -- -j$(nproc)
 #### Release build
 
 ```sh
-cmake -G "Unix Makefiles" -H. -Bbuild -DCMAKE_BUILD_TYPE=Release
+cmake -G "Unix Makefiles" -S. -Bbuild -DCMAKE_BUILD_TYPE=Release
 cmake --build build -- -j$(nproc)
 ```