Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,8 +1,11 @@
 ---
 name: Bug Report
 about: Report a bug found in ngx-progressbar
----
+title: ''
+labels: ''
+assignees: ''
 
+---
 
 #### Reproduction
 
@@ -28,4 +31,4 @@ What behavior did you actually see?
 - Angular:
 - ngx-progressbar:
 - Browser(s):
-- Operating System (e.g. Windows, macOS, Ubuntu): 
+- Operating System (e.g. Windows, macOS, Ubuntu):

.github/ISSUE_TEMPLATE/docs.md

@@ -1,12 +1,14 @@
 ---
 name: Documentation
 about: Suggest an improvement to our documentation at https://github.com/MurhafSousli/ngx-progressbar/wiki
-labels: docs
+title: ''
+labels: ''
+assignees: ''
+
 ---
 
 #### Documentation Feedback
 
-Provide a brief summary of what you would like to see changed in our 
-documentation at https://github.com/MurhafSousli/ngx-progressbar/wiki.
+Provide a brief summary of what you would like to see changed in our documentation.
 
 Feel free to provide any suggestions of content or examples you’d like us to include.

.github/ISSUE_TEMPLATE/feature.md

@@ -1,9 +1,12 @@
 ---
 name: Feature
 about: Propose a new feature for ngx-progressbar
+title: ''
 labels: feature
+assignees: ''
+
 ---
- 
+
 #### Feature Description
 
 Provide a brief summary of the feature you would like to see.