Auto merge of #24383 - avdi:patch-1, r=steveklabnik

"Dynamically typed" didn't seem like a relevant distinction; there are statically-compiled dynamically-typed languages. Another term that might work here (despite being notoriously vague) is "scripting languages".

src/doc/trpl/hello-world.md

@@ -147,7 +147,7 @@ $ ./main  # or main.exe on Windows
 
 This prints out our `Hello, world!` text to our terminal.
 
-If you come from a dynamically typed language like Ruby, Python, or JavaScript,
+If you come from a dynamic language like Ruby, Python, or JavaScript,
 you may not be used to these two steps being separate. Rust is an
 ‘ahead-of-time compiled language’, which means that you can compile a program,
 give it to someone else, and they don't need to have Rust installed. If you