Changed tabs to spaces in issue template (#1241)

* changed tab to space in bug report template

* remove space

Author: danyadev

.github/ISSUE_TEMPLATE/bug_report.md

@@ -10,10 +10,10 @@ about: Create a report to help us improve
   To make sure it's not, run: yarn eslint src/your-file.vue
 -->
 
-**Tell us about your environment**	
-* **ESLint version:**	
-* **eslint-plugin-vue version:**	
-* **Node version:**	
+**Tell us about your environment**
+* **ESLint version:** 
+* **eslint-plugin-vue version:** 
+* **Node version:** 
 
 **Please show your full configuration:**
 <!-- Paste content of your .eslintrc file -->