Update LF_PACKAGE_EXPLORER.md

Co-authored-by: Peter Donovan <[email protected]>

LF_PACKAGE_EXPLORER.md

@@ -47,7 +47,7 @@ To effectively utilize Lingo for downloading a remote LF Project (GitHub repo),
 
 Once Lingo has been properly initialized on the local side, programmers will discover a **`Lingo.toml`** file within its folder. An example of this file is the following:
 
-```makefile
+```toml
 [package]
 name = "firstproject"
 version = "0.1.0"