doc(fix typo): add missing "l" in "toml"

Author: gilbsgilbs

examples/README.md

@@ -11,6 +11,6 @@ This directory contains the source for the above.
 ## Contributing
 
 New examples should fit within the above structure and support their narrative
-- Add the example to [Cargo.tom](../Cargo.toml) for any `required-features`
+- Add the example to [Cargo.toml](../Cargo.toml) for any `required-features`
 - Document how the example works with a `.md` file which will be verified using [trycmd](https://docs.rs/trycmd)
 - Pull the `.rs` and `.md` file into the appropriate module doc comment to be accessible on docs.rs