docs (config): Add more documentation.

Write `config` command docs.
Extend `config` header and add tutorial link.
Allow moderators to read settings (but not configure them).
Change `config help` to `config info`.

bot/modules/guild_admin/guild_config.py

@@ -1,6 +1,7 @@
 import discord
+from cmdClient.lib import SafeCancellation
 
-from wards import guild_admin
+from wards import guild_admin, guild_moderator
 from settings import UserInputError, GuildSettings
 
 from utils.lib import prop_tabulate
@@ -26,12 +27,40 @@ descriptions = {
             desc="View and modify the server settings.",
             flags=('add', 'remove'),
             group="Guild Configuration")
-@guild_admin()
+@guild_moderator()
 async def cmd_config(ctx, flags):
+    """
+    Usage``:
+        {prefix}config
+        {prefix}config info
+        {prefix}config <setting>
+        {prefix}config <setting> <value>
+    Description:
+        Display the server configuration panel, and view/modify the server settings.
+
+        Use `{prefix}config` to see the settings with their current values, or `{prefix}config info` to \
+            show brief descriptions instead.
+        Use `{prefix}config <setting>` (e.g. `{prefix}config event_log`) to view a more detailed description for each setting, \
+            including the possible values.
+        Finally, use `{prefix}config <setting> <value>` to set the setting to the given value.
+        To unset a setting, or set it to the default, use `{prefix}config <setting> None`.
+
+    Additional usage for settings which accept a list of values:
+        `{prefix}config <setting> <value1>, <value2>, ...`
+        `{prefix}config <setting> --add <value1>, <value2>, ...`
+        `{prefix}config <setting> --remove <value1>, <value2>, ...`
+        Note that the first form *overwrites* the setting completely,\
+            while the second two will only *add* and *remove* values, respectively.
+    Examples``:
+        {prefix}config event_log
+        {prefix}config event_log {ctx.ch.name}
+        {prefix}config autoroles Member, Level 0, Level 10
+        {prefix}config autoroles --remove Level 10
+    """
     # Cache and map some info for faster access
     setting_displaynames = {setting.display_name.lower(): setting for setting in GuildSettings.settings.values()}
 
-    if not ctx.args or ctx.args.lower() == 'help':
+    if not ctx.args or ctx.args.lower() in ('info', 'help'):
         # Fill the setting cats
         cats = {}
         for setting in GuildSettings.settings.values():
@@ -60,8 +89,14 @@ async def cmd_config(ctx, flags):
                     colour=discord.Colour.orange(),
                     title=page_name,
                     description=(
-                        "View brief setting descriptions with `{prefix}config help`.\n"
+                        "View brief setting descriptions with `{prefix}config info`.\n"
-                        "See `{prefix}help config` for more general usage.".format(prefix=ctx.best_prefix)
+                        "Use e.g. `{prefix}config event_log` to see more details.\n"
+                        "Modify a setting with e.g. `{prefix}config event_log {ctx.ch.name}`.\n"
+                        "See the [Online Tutorial]({tutorial}) for a complete setup guide.".format(
+                            prefix=ctx.best_prefix,
+                            ctx=ctx,
+                            tutorial="https://discord.studylions.com/tutorial"
+                        )
                     )
                 )
                 for name, value in page.items():
@@ -71,7 +106,7 @@ async def cmd_config(ctx, flags):
 
         if len(pages) > 1:
             [
-                embed.set_footer(text="Page {}/{}".format(i+1, len(pages)))
+                embed.set_footer(text="Page {} of {}".format(i+1, len(pages)))
                 for i, embed in enumerate(pages)
             ]
             await ctx.pager(pages)
@@ -98,9 +133,12 @@ async def cmd_config(ctx, flags):
             await setting.get(ctx.guild.id).widget(ctx, flags=flags)
         else:
             # config <setting> <value>
+            # Ignoring the write ward currently and just enforcing admin
             # Check the write ward
-            if not await setting.write_ward.run(ctx):
+            # if not await setting.write_ward.run(ctx):
-                await ctx.error_reply(setting.write_ward.msg)
+            #     raise SafeCancellation(setting.write_ward.msg)
+            if not await guild_admin.run(ctx):
+                raise SafeCancellation("You need to be a server admin to modify settings!")
 
             # Attempt to set config setting
             try: