[DOCS] Change "Imporving the documentation" to "Improving the documen…

…tation"

try to fix #2315 problem 1

.github/ISSUE_TEMPLATE/doc-improvement-report.yml

@@ -64,7 +64,7 @@ body:
 
   - type: textarea
     attributes:
-      label: Imporving the documentation
+      label: Improving the documentation
       description: How do you think the documentation can be improved?
       placeholder: >
         Please explain how you think the documentation could be improved. Ideally specify where a new or missing
@@ -94,4 +94,4 @@ body:
 
   - type: markdown
     attributes:
-      value: "Thanks for taking the time to fill out this Doc improvement report!"
+      value: "Thanks for taking the time to fill out this Doc improvement report!"