adding two more labels to the templates

Author: SarahAlidoost

.github/ISSUE_TEMPLATE/feature_suggestion.md

@@ -2,7 +2,7 @@
 name: Suggestion
 about: Suggest a feature for the tutorial repository
 title: ''
-labels: enhancement
+labels: enhancement, feature
 assignees: ''
 
 ---

.github/ISSUE_TEMPLATE/lesson_contribution.md

@@ -2,7 +2,7 @@
 name: New lesson material
 about: Develop lessons
 title: ''
-labels: enhancement
+labels: enhancement, lesson
 assignees: ''
 
 ---