docs: update readme

Signed-off-by: Abiola Ibrahim <git@abiosoft.com>

Author: abiosoft

README.md

@@ -12,7 +12,7 @@ Mold builds on [Go templates](https://pkg.go.dev/text/template) to provide a sim
 Mold offers the following, making it an ideal choice for Go projects.
 
 - **Lightweight**: relies on the Go standard lib with no external dependencies.
-- **Efficient**: utilises Go's in-build template parser under the hood.
+- **Efficient**: utilises Go's in-built template parser under the hood.
 - **Capable**: supports all capabilities of Go templates.
 - **Familiar**: uses the well-known [concepts](#concepts) of Layouts, Views and Partials.