CHANGELOG wording tweak

[skip ci]

CHANGELOG.md

@@ -6,7 +6,7 @@ Squib follows [semantic versioning](http://semver.org).
 Features:
 * `save_pdf` now supports crop marks! These are lines drawn in the margins of a PDF file to help you cut. These can be enabled by setting `crop_marks: true` in your `save_pdf` call. Can be further customized with `crop_margin_bottom`, `crop_margin_left`, `crop_margin_right`, `crop_margin_top`, `crop_marks`, `crop_stroke_color`, `crop_stroke_dash`, and `crop_stroke_width` (#123)
 * `Squib.configure` allows you to set options programmatically, overriding your config.yml. This is useful for Rakefiles, and will be documented in my upcoming tutorial on workflows.
-* `Squib.enable_build_globally` and `Squib.disable_build_globally` are new convenience methods for working with the `SQUIB_BUILD` environment variable. Handy for Rakefiles and Guard sessions for turning certain builds on an off.
+* `Squib.enable_build_globally` and `Squib.disable_build_globally` are new convenience methods for working with the `SQUIB_BUILD` environment variable. Handy for Rakefiles and Guard sessions for turning certain builds on an off. Also will be in upcoming workflow tutorial.
 
 Bugs:
 * `showcase` works as expected when using `backend: svg` (#179)