Update issue templates (#2)

.github/ISSUE_TEMPLATE/bug.md

@@ -2,8 +2,9 @@
 name: Report a bug
 about: Something with go-ethereum is not working as expected
 title: ''
-labels: 'type:bug'
+labels: ''
 assignees: ''
+
 ---
 
 #### System information

.github/ISSUE_TEMPLATE/custom.md

@@ -0,0 +1,10 @@
+---
+name: Custom issue template
+about: Describe this issue template's purpose here.
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+

.github/ISSUE_TEMPLATE/feature.md

@@ -2,8 +2,9 @@
 name: Request a feature
 about: Report a missing feature - e.g. as a step before submitting a PR
 title: ''
-labels: 'type:feature'
+labels: ''
 assignees: ''
+
 ---
 
 # Rationale
@@ -14,4 +15,4 @@ What are the use-cases?
 # Implementation
 
 Do you have ideas regarding the implementation of this feature?
-Are you willing to implement this feature?
+Are you willing to implement this feature?

.github/ISSUE_TEMPLATE/question.md

@@ -2,8 +2,9 @@
 name: Ask a question
 about: Something is unclear
 title: ''
-labels: 'type:docs'
+labels: ''
 assignees: ''
+
 ---
 
 This should only be used in very rare cases e.g. if you are not 100% sure if something is a bug or asking a question that leads to improving the documentation. For general questions please use [discord](https://discord.gg/nthXNEv) or the Ethereum stack exchange at https://ethereum.stackexchange.com.