Lower no .respond() called before .send() logger message to INFO

Author: eunwoo1104

discord_slash/context.py

@@ -149,7 +149,7 @@ async def send(self,
         if isinstance(content, int) and 2 <= content <= 5:
             raise error.IncorrectFormat("`.send` Method is rewritten at Release 1.0.9. Please read the docs and fix all the usages.")
         if not self.sent:
-            self.logger.warning(f"At command `{self.name}`: It is highly recommended to call `.respond()` first!")
+            self.logger.info(f"At command `{self.name}`: It is recommended to call `.respond()` first!")
             await self.respond(eat=hidden)
         if hidden:
             if embeds or embed:

docs/migrate_to_109.rst

@@ -30,14 +30,14 @@ After:
 .. code-block:: python
 
     # Case 1
-    await ctx.respond()
+    await ctx.respond()  # This is optional, but still recommended to.
     msg = await ctx.send("Hello, World! This is initial message.")
     await msg.edit(content="Or nevermind.")
     await msg.delete()
     await ctx.send("This is followup message.")
 
     # Case 2
-    await ctx.respond(eat=True)
+    await ctx.respond(eat=True)  # Again, this is optional, but still recommended to.
     await ctx.send("This is secret message.", hidden=True)
 
 Objects of the command invoke
@@ -73,7 +73,7 @@ Before:
 
 .. code-block:: python
 
-    slash = SlashContext(..., auto_register=True, auto_delete=True)
+    slash = SlashContext(..., auto_register=True, auto_delete=True)  # Either one can be false.
 
 After: