WHEW. Added placeholders in embeds and quotes, added docs about it to explained features. Wrote a placeholder system and fixed some bugs

docs/Custom Reactions.md

@@ -36,14 +36,4 @@ For example:
 Now if you try to trigger `/o/`, it won't print anything.
 
 ###Placeholders!
-There are currently three different placeholders which we will look at, with more placeholders potentially coming in the future.  
-
-| Placeholder | Description | Example Usage | Usage |
-|:-----------:|-------------|---------------|-------|
-|`%mention%`|The `%mention%` placeholder is triggered when you type `@BotName` - It's important to note that if you've given the bot a custom nickname, this trigger won't work!|```.acr "Hello %mention%" I,  %mention%, also say hello!```|Input: "Hello @BotName" Output: "I, @BotName, also say hello!"|
-|`%user%`|The `%user%` placeholder mentions the person who said the command|`.acr "Who am I?" You are %user%!`|Input: "Who am I?" Output: "You are @Username!"|
-|`%rng%`|The `%rng%` placeholder generates a random number between 0 and 10. You can also specify a custom range (%rng1-100%) even with negative numbers: `%rng-9--1%` (from -9 to -1) . |`.acr "Random number" %rng%`|Input: "Random number" Output: "2"|
-|`%rnduser%`|The `%rnduser%` placeholder mentions a random user from the server. |`.acr "Random user" %rnduser%`|Input: "Random number" Output: @SomeUser|
-|`%target%`|The `%target%` placeholder is used to make Nadeko Mention another person or phrase, it is only supported as part of the response|`.acr "Say this: " %target%`|Input: "Say this: I, @BotName, am a parrot!". Output: "I, @BotName, am a parrot!".|
-		
- Thanks to Nekai for being creative. <3
+To learn about placeholders, go [here](Placeholders.md)

docs/Placeholders.md

@@ -0,0 +1,24 @@
+Placeholders are used in Quotes, Custom Reactions, Greet/bye messages, playing statuses, and a few other places.  
+
+They can be used to make the message more user friendly, generate random numbers or pictures, etc...  
+
+Some features have their own specific placeholders which are noted in that feature's command help. Some placeholders are not available in certain features because they don't make sense there.
+
+### Here is a list of the usual placeholders:  
+- `%mention%` - Mention the bot  
+- `%shardid%` - Shard id
+- `%server%` - Server name  
+- `%sid%` - Server Id  
+- `%channel%` - Channel mention  
+- `%chname%` - Channel mention
+- `%cid%` - Channel Id  
+- `%user%` - User mention
+- `%id%` or `%uid%` -  User Id
+- `%userfull%` - Username#discriminator
+- `%userdiscrim%` - discriminator (for example 1234)
+- `%rngX-Y%` - Replace X and Y with the range (for example `%rng5-10%` - random between 5 and 10)
+- `%time%` - Bot time
+
+**If you're using placeholders in embeds, don't use %user% and  in titles, footers and field names. They will not show properly.**
+
+![img](http://i.imgur.com/lNNNfs1.png)

docs/index.md

@@ -28,6 +28,7 @@ If you want to contribute, be sure to PR on the **[1.4][1.4]** branch.
 	- [Permissions System](Permissions System.md)
 	- [JSON Explanations](JSON Explanations.md)
 	- [Custom Reactions](Custom Reactions.md)
+	- [Placeholders](Placeholders.md)
 - [Frequently Asked Questions](Frequently Asked Questions.md)
 - [Contribution Guide](Contribution Guide.md)
 - [Donate](Donate.md)