update examples

.github/ISSUE_TEMPLATE/bug-report.md

@@ -1,30 +0,0 @@
----
-name: "\U0001F41B Bug report"
-about: Create a report to help us improve milvus-sdk-java
-title: "[BUG]"
-labels: ''
-assignees: ''
-
----
-
-**Describe the bug**
-A clear and concise description of what the bug is.
-
-**Steps/Code to reproduce behavior**
-Follow this [guide](http://matthewrocklin.com/blog/work/2018/02/28/minimal-bug-reports) to craft a minimal bug report. This helps us reproduce the issue you're having and resolve the issue more quickly.
-
-**Expected behavior**
-A clear and concise description of what you expected to happen.
-
-**Environment details**
-
-- Hardware/Softward conditions (OS, CPU, GPU, Memory)
-- Method of installation (Docker, or from source)
-- Milvus version (v0.3.1, or v0.4.0)
-- Milvus configuration (Settings you made in `server_config.yaml`)
-
-**Screenshots**
-If applicable, add screenshots to help explain your problem.
-
-**Additional context**
-Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature-request.md

@@ -1,19 +0,0 @@
----
-name: "\U0001F680 Feature request"
-about: Suggest an idea for milvus-sdk-java
-title: "[FEATURE]"
-labels: ''
-assignees: ''
-
----
-
-**Is your feature request related to a problem? Please describe.**
-A clear and concise description of what the problem is. E.g. I wish I could use Milvus to do [...]
-**Describe the solution you'd like**
-A clear and concise description of what you want to happen.
-
-**Describe alternatives you've considered**
-A clear and concise description of any alternative solutions or features you've considered.
-
-**Additional context**
-Add any other context, code examples, or references to existing implementations about the feature request here.

.github/ISSUE_TEMPLATE/general-question.md

@@ -1,10 +0,0 @@
----
-name: "\U0001F914 General question"
-about: Ask a general question about milvus-sdk-java
-title: "[QUESTION]"
-labels: ''
-assignees: ''
-
----
-
-**What is your question?**