try to fix markdown relative link

src/viam/examples/project/README.md

@@ -8,7 +8,7 @@ tree and read the build instructions, then install the SDK.
   this sample `CMakeLists.txt` can be used with no modifications
   to build against the SDK as installed directly from CMake,
   or to build against the `viam-cpp-sdk` `conan` package. For
-  instructions building with `conan`, see [here](/../../../../BUILDING.md#creating-and-consuming-the-sdk-conan-package).
+  instructions building with `conan`, see [here](/BUILDING.md#creating-and-consuming-the-sdk-conan-package).
 
 - For an example project showing how to consume an installed
   `viam-cpp-sdk` via its `pkg-config` setup, see