refactor: use "diagram" instead of "graph"

Change everywhere to use the word "diagram" instead of "graph. Diagram
seems like the better word. It's mostly used in comments and
documentation, but there was one filename and one trait name that
needed changing.

I used "rg -iw graph" and "find -iname '*graph*'" to find everywhere
that needed changing.

Sponsored-by: author

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib.rs b/src/lib.rs
index 4bef83a..d253765 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -21,8 +21,8 @@ pub use error::Warnings;
 
 pub mod resource;
 
-mod graphmarkup;
-pub use graphmarkup::{DotMarkup, GraphMarkup, MarkupOpts, PikchrMarkup, PlantumlMarkup};
+mod diagrams;
+pub use diagrams::{DiagramMarkup, DotMarkup, MarkupOpts, PikchrMarkup, PlantumlMarkup};
 
 mod datafiles;
 pub use datafiles::DataFile;