Use double quotes in README examples

Author: Dorukyum

README.rst

@@ -74,18 +74,18 @@ Quick Example
 
     class MyClient(discord.Client):
         async def on_ready(self):
-            print('Logged on as', self.user)
+            print("Logged on as", self.user)
 
         async def on_message(self, message):
             # don't respond to ourselves
             if message.author == self.user:
                 return
 
-            if message.content == 'ping':
-                await message.channel.send('pong')
+            if message.content == "ping":
+                await message.channel.send("pong")
 
     client = MyClient()
-    client.run('token')
+    client.run("token")
 
 Bot Example
 ~~~~~~~~~~~~~
@@ -95,13 +95,13 @@ Bot Example
     import discord
     from discord.ext import commands
 
-    bot = commands.Bot(command_prefix='>')
+    bot = commands.Bot(command_prefix=">")
 
     @bot.command()
     async def ping(ctx):
-        await ctx.send('pong')
+        await ctx.send("pong")
 
-    bot.run('token')
+    bot.run("token")
 
 You can find more examples in the examples directory.