Update guide/src/README.md

Co-authored-by: Sven Assmann <sven@d34dl0ck.me>

guide/src/README.md

@@ -15,7 +15,7 @@ cargo-generate uses [Shopify's Liquid] template language,
 Due to the use of [Shopify's Liquid], `cargo-generate` special cases files with the file-ending
 `.liquid`, by simply removing the file-ending when processing the files. If you, as a template 
 author, truly wants the `.liquid` file-ending, you need to repeat it twice!
-
+An Example: the file `main.rs.liquid` will be renamed after templating to `main.rs`
 Here's an example of using `cargo-generate` with [this template]:
 ![demo.gif](./demo.gif)