Update src/items/external-blocks.md

Co-Authored-By: Mazdak Farrokhzad <[email protected]>

Author: gnzlbg

src/items/external-blocks.md

@@ -31,7 +31,7 @@
 
 External blocks provide _declarations_ of items that are not _defined_ in the
 current crate and are the basis of Rust's foreign function interface. These are
-sort of like unchecked imports. 
+akin to unchecked imports. 
 
 Two kind of item _declarations_ are allowed in external blocks: [functions] and
 [statics]. Calling functions or accessing statics that are declared in external