Update README.md

Author: anderslanglands

README.md

@@ -145,7 +145,7 @@ extern "C" {
 
 
 ## Quick start
-You must have LLVM and clang 11.0.0 and available on your $PATH. To run the tests you'll need OpenEXR 2.5.5 installed. Other versions may work but the tests will fail as they rely on diffing the output, which will have the version numbers baked into the type names.
+You must have LLVM and clang 11.0.0 installed. To run the tests you'll need OpenEXR 2.5.5 installed. Other versions may work but the tests will fail as they rely on diffing the output, which will have the version numbers baked into the type names.
 
 ### Checkout
 The repository includes spdlog and nlohmann::json as submodules, so clone with `--recursive`: