fix we

Co-authored-by: Helen <58733007+el-termikael@users.noreply.github.com>

docs/general/ad-filtering/create-own-filters.md

@@ -602,7 +602,7 @@ There is a set of modifiers, which can be used to limit the rule's application a
 There is a big difference in how AdGuard determines the content type on different platforms.
 For AdGuard Browser Extension, content type for every request is provided by the browser.
 AdGuard for Windows, Mac, and Android use the following method:
-first we try to determine the type of the request by the `Sec-Fetch-Dest` request header or by the filename extension.
+first, the apps try to determine the type of the request by the `Sec-Fetch-Dest` request header or by the filename extension.
 If the request is not blocked at this stage,
 the type will be determined using the `Content-Type` header at the beginning of the server response.