[libc-commits] [libc] [libc] Update GPU documentation pages (PR #84076)

[Nick Desaulniers via libc-commits]

================
@@ -0,0 +1,243 @@
+.. _libc_gpu_building:
+
+======================
+Building libs for GPUs
+======================
+
+.. contents:: Table of Contents
+  :depth: 4
+  :local:
+
+Building the GPU C library
+========================
----------------
nickdesaulniers wrote:

/me checks notes

```
    To build libc docs:
    - Configure with `-DLLVM_ENABLE_SPHINX=ON -DLIBC_INCLUDE_DOCS=ON`
    - Build with `ninja docs-libc-html`
```
then you can verify the output locally.

https://github.com/llvm/llvm-project/pull/84076