Add issue template config for custom template selection (#272)

* Fix typos

* Update change_request_placeholderapi.md

* Slighty better grammar

* Create config.yml

* Add about part

* Make wiki point to PAPI wiki

.github/ISSUE_TEMPLATE/bug_report.md

@@ -21,20 +21,20 @@ Please also make sure that you use the [latest release][Spigot] or the latest [d
 
 ### Issue
 > What is the issue? Describe it like you would tell a friend.
-<!-- Please type below this like -->
+<!-- Please write below this line to prevent formatting issues -->
 
 
 ### Expected behaviour
 > What should PlaceholderAPI do?
-<!-- Please type below this like -->
+<!-- Please write below this line to prevent formatting issues -->
 
 
 ### Actual behaviour
 > What does PlaceholderAPI actually do?
-<!-- Please type below this like -->
+<!-- Please write below this line to prevent formatting issues -->
 
 
 ### How to reproduce
 > What steps did you made, to get this bug?
-<!-- Please type below this like -->
+<!-- Please write below this line to prevent formatting issues -->
 1. 

.github/ISSUE_TEMPLATE/change_request_placeholderapi.md

@@ -35,4 +35,4 @@ Changes to code that will affect the end-user (breaks stuff).
 ### Info
 > What is the change?  
 > Please provide as much information (including links, images and code-snippeds) as possible.
-<!-- Please type below this line -->
+<!-- Please write below this line to prevent formatting issues -->

.github/ISSUE_TEMPLATE/change_request_wiki.md

@@ -31,4 +31,4 @@ An already listed expansion/plugin has new placeholders or old ones have changed
 ### Info
 > Please provide any information that is useful including links and images.  
 > For plugins/expansion providing new placeholders or updating old ones, provide the placeholders (that have changed)
-<!-- Please type below this line -->
+<!-- Please write below this line to prevent formatting issues -->

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,11 @@
+blank_issues_enabled: false
+contact_links:
+  - name: HelpChat Discord
+    url: https://discord.gg/helpchat
+    about: Please join our Discord for faster support.
+  - name: Wiki
+    url: https://github.com/PlaceholderAPI/PlaceholderAPI/wiki
+    about: The Wiki of PlaceholderAPI.
+  - name: Hastebin
+    url: https://paste.helpch.at
+    about: Use our Hastebin-site for sharing errors and configuration files.