Document coreutils dependency, tweak clang tidy workflow

.github/workflows/run-clang-tidy.yml

@@ -1,3 +1,4 @@
+# This workflow will lint the project using clang-tidy
 name: Clang-tidy linting
 
 on:
@@ -7,7 +8,7 @@ on:
     branches: '**'
 
 jobs:
-  build:
+  lint:
     runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v4

README.md

@@ -83,6 +83,7 @@
   - Package names are correct for Debian, other distros may vary
   - `make`
   - `pkg-config`
+  - `coreutils`
   - `g++` **OR** `clang`
     - If using clang, use `CXX="clang++" make [TARGET]`
     - When swapping between different compilers, run `make clean`