Poll: help fallback, // separators, quoted questions, multi-vote

docs/communication.md

@@ -44,6 +44,7 @@ Notes:
 - The owner cannot be removed.
 - The command accepts mentions and raw user IDs.
 - `whitelist` commands need the admin tier.
+- A bare `whitelist` or `whitelist help` shows the help.
 - The reply follows the response policy.
 
 ## Polls
@@ -51,15 +52,34 @@ Notes:
 The `poll` command posts a message and adds one number emoji per option. Discord users vote by
 reacting. The poll closes after `pollSeconds` (default 120) and the daemon posts the result.
 
+Format:
+
+```
+poll "Question" Option 1 // Option 2 [// Option 3 [// Option 4]]
+poll Question | Option 1 | Option 2
+```
+
+- The question can be in quotes. Then the first option follows after the closing quote.
+- Separators are `|` or `//`. The `//` separator needs whitespace on both sides. This keeps URLs
+  such as `https://example.com` in one piece.
+- A bare `poll` or `poll help` shows the help.
 - Options: 2 to 4. Each option is at most 80 characters.
+
+Voting:
+
 - Emojis: `1️⃣`, `2️⃣`, `3️⃣`, `4️⃣`.
-- One vote per user. A new vote replaces the old vote.
-- Removing the reaction removes the vote.
+- Multiple reactions per user are allowed. Each reaction counts.
+- Removing a reaction removes that one selection.
 - The puppet's own reactions do not count.
 - Votes do not need a trust tier. Friends can vote.
 - The result message goes to the poll channel.
 
-Example: `@puppet poll Lunch? | Pizza | Sushi`
+Examples:
+
+```
+@puppet poll "What country is best" Sweden // Denmark // Madagaskar
+@puppet poll Lunch? | Pizza | Sushi
+```
 
 ## Response policy