misc(seautils): switch to datatracker.ietf.org links for publicly facing urls

seautils/seautils.py

@@ -206,6 +206,7 @@ class SeaUtils(commands.Cog):
         This command uses the [RFC Editor website](https://www.rfc-editor.org/) to fetch the text of an RFC document.
         A [Request for Comments (RFC)](https://en.wikipedia.org/wiki/Request_for_Comments) is a publication in a series from the principal technical development and standards-setting bodies for the [Internet](https://en.wikipedia.org/wiki/Internet), most prominently the [Internet Engineering Task Force](https://en.wikipedia.org/wiki/Internet_Engineering_Task_Force). An RFC is authored by individuals or groups of engineers and [computer scientists](https://en.wikipedia.org/wiki/Computer_scientist) in the form of a [memorandum](https://en.wikipedia.org/wiki/Memorandum) describing methods, behaviors, research, or innovations applicable to the working of the Internet and Internet-connected systems. It is submitted either for [peer review](https://en.wikipedia.org/wiki/Peer_review) or to convey new concepts, information, or, occasionally, engineering humor.""" # noqa: E501
         url = f"https://www.rfc-editor.org/rfc/rfc{number}.html"
+        datatracker_url = f"https://datatracker.ietf.org/doc/rfc{number}"
         async with aiohttp.ClientSession() as session:
             async with session.get(url=url) as response:
                 if response.status == 200:
@@ -221,7 +222,7 @@ class SeaUtils(commands.Cog):
                                 if await ctx.embed_requested():
                                     embed = Embed(
                                         title=f"RFC Document {number}",
-                                        url=url,
+                                        url=datatracker_url,
                                         description=page,
                                         color=await ctx.embed_color()
                                     )
@@ -232,7 +233,7 @@ class SeaUtils(commands.Cog):
                             if await ctx.embed_requested():
                                 embed = Embed(
                                     title=f"RFC Document {number}",
-                                    url=url,
+                                    url=datatracker_url,
                                     description=text,
                                     color=await ctx.embed_color()
                                 )