Update mg_skip.md

docs/c-api/util.h/mg_skip.md

@@ -7,11 +7,11 @@ signature: |
                       const char *delimiters, struct mg_str *v);
 ---
 
-Fetch substring from input string `s`, `end` into `v`.
+Fetches substring from input string `s`, `end` into `v`.
 Skips initial delimiter characters. Records first non-delimiter character
-as the beginning of substring `v`. Then scans the rest of the string
+at the beginning of substring `v`. Then scans the rest of the string
 until a delimiter character or end-of-string is found.
 `delimiters` is a 0-terminated string containing delimiter characters.
 Either one of `delimiters` or `end_string` terminates the search.
-Return an `s` pointer, advanced forward where parsing stopped. 
+Returns an `s` pointer, advanced forward where parsing has stopped.