Apply suggestions from code review

Co-authored-by: Christoph Otter <[email protected]>

CWAs/CWA-2023-004.md

@@ -45,9 +45,9 @@ This is demonstrated in the following example where you see
 )
 ```
 
-This is harmless in Wasm bytecode, but once the function is compiled, signature are inlined multiple times
+This is harmless in Wasm bytecode, but once the function is compiled, signatures are inlined multiple times
 in the compiled code.
-Using a large signature that is referenced by a large number of function,
+Using a large signature that is referenced by a large number of functions,
 you get pretty much a compression bomb – small in the uploaded Wasm blob but huge after compilation.
 This can lead to
 modules of several hundreds of megabytes or even gigabytes, leading to unexpected cache behaviour, unexpected disk