feat: add GitHub issue template (#5)

* update private net readme
* add issue template

.github/ISSUE_TEMPLATE/ask-a-question.md

@@ -0,0 +1,10 @@
+---
+name: Ask a question
+about: Something is unclear
+title: ''
+labels: 'type:docs'
+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/cGKSsRVCGm) or [Telegram](https://t.me/TronOfficialDevelopersGroupEn).
+

.github/ISSUE_TEMPLATE/report-a-bug.md

@@ -0,0 +1,50 @@
+---
+name: Report a bug
+about: Create a report to help us improve
+title: ''
+labels: 'type:bug'
+assignees: ''
+
+---
+
+<!-- Have you done the following? -->
+<!--   * Reproduced the issue in the latest version of the software -->
+<!--   * Duplicate Issue check:  https://github.com/search?q=+is%3Aissue+repo%3Atronprotocol/java-tron -->
+
+#### Software Versions
+<!-- `java -jar FullNode.jar -v` -->
+
+<!-- 
+```
+OS : Linux
+JVM : Oracle Corporation 1.8.0_161 amd64
+Git : b1fc2f0f2bd79527099bc3027b9aba165c2e20c2
+Version : 4.7.4
+Code : 18260
+```
+-->
+
+#### Expected behaviour
+<!--[What you expect to happen] -->
+
+
+#### Actual behaviour
+<!--[What you expect to happen] -->
+
+
+#### Frequency
+<!-- [What percentage of the time does it occur?] -->
+
+#### Steps to reproduce the behaviour
+
+1. [Step 1]
+2. [Step 2]
+3. [Step ...]
+
+#### Backtrace
+
+````
+[backtrace]
+````
+
+When submitting logs: please submit them as text and not screenshots.

.github/ISSUE_TEMPLATE/request-a-feature.md

@@ -0,0 +1,28 @@
+---
+name: Request a feature
+about: Suggest an idea for this project
+title: ''
+labels: 'type:feature'
+assignees: ''
+
+---
+# Background
+
+# Rationale
+
+Why should this feature exist?
+
+What are the use-cases?
+
+# Specification
+
+# Test Specification
+
+# Scope Of Impact
+
+
+# Implementation
+
+Do you have ideas regarding the implementation of this feature?
+
+Are you willing to implement this feature?

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,12 @@
+**What does this PR do?**
+
+**Why are these changes required?**
+
+**This PR has been tested by:**
+- Unit Tests
+- Manual Testing
+
+**Follow up**
+
+**Extra details**
+

private_net/README.md

@@ -21,7 +21,7 @@ Please download and install the latest version of Docker from the official Docke
 Then check the Docker resource settings to ensure it has at least 12GB of memory per TRON node.
 
 ## Quick-Start using Docker
-Download the folder [private_net](../private_net) and [docker-compose.yml](./docker-compose.yml) from GitHub. Enter the directory and run the docker-composer.
+Download the folder [private_net](../private_net) from GitHub. Enter the directory and run the docker-composer.
 ```
 cd ./private_net
 docker-compose up -d