diff --git a/themes.mdx b/themes.mdx
index 308b4ed..d53ace5 100644
--- a/themes.mdx
+++ b/themes.mdx
@@ -14,7 +14,7 @@ Ghost also makes use of an additional library called `express-hbs` which adds so
 
 If you’ve previously built themes for other popular platforms, working with the Ghost theme layer is extremely accessible. This documentation gives you the tools required to create static HTML and CSS for a theme, using Handlebars expressions when you need to render dynamic data.
 
-Our tutorial on the [essential concepts to known when building a Ghost theme](https://ghost.org/tutorials/essential-concepts/), provides a fantastic introduction to everything you need to know to start building beautiful themes.
+Our tutorial on the [essential concepts to know when building a Ghost theme](https://ghost.org/tutorials/essential-concepts/), provides a fantastic introduction to everything you need to know to start building beautiful themes.
 
 ## Handlebars
 
@@ -59,4 +59,4 @@ gscan -z /path/to/download/theme.zip
 
 That’s all of the background context required to get started. From here, take a look at the [structure](/themes/structure/) of Ghost themes and templates, and learn everything you need to know about the `package.json` file.
 
-For community led support about theme development, visit [the forum](https://forum.ghost.org/c/themes/).
\ No newline at end of file
+For community-led support about theme development, visit [the forum](https://forum.ghost.org/c/themes/).