doc/ref: fix HTML anchor link in spec
Anchor links are case sensitive.
Change-Id: I582cda98c3a63bf405fe15495fcb75e3aeb80e06
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/9041
Reviewed-by: CUE cueckoo <cueckoo@gmail.com>
Reviewed-by: Paul Jolly <paul@myitcv.org.uk>
diff --git a/doc/ref/spec.md b/doc/ref/spec.md
index 228608c..72c6416 100644
--- a/doc/ref/spec.md
+++ b/doc/ref/spec.md
@@ -1354,7 +1354,7 @@
That is, a referenced definition will not unify with a struct
that would add a field anywhere within the definition that it does not
already define or explicitly allow with a pattern constraint or `...`.
-[Embeddings](#Embedding) allow bypassing this check.
+[Embeddings](#embedding) allow bypassing this check.
If referencing a definition would always result in an error, implementations
may report this inconsistency at the point of its declaration.
