fix searchbar according to issue

subjects/groupie-tracker/search-bar/README.md

@@ -12,7 +12,7 @@ Groupie tracker search bar consists of creating a functional program that search
   - locations
   - first album date
   - creation date
-- The program must handle case sensitive.
+- The program must handle search input as case-insensitive.
 - The search bar must have typing suggestions as you write.
   - The search bar must identify and display in each suggestion the individual type of the search cases. (ex: Freddie Mercury -> member)
   - For example if you start writing `"phil"` it should appear as suggestions `Phil Collins - member` and `Phil Collins - artist/band`. This is just an example of a display.

subjects/groupie-tracker/search-bar/audit.md

@@ -28,11 +28,7 @@
 
 ##### Try to search for the artist/band `"queen"`.
 
-###### Does it handle the case sensitive and does not display any result?
-
-##### Try to search for the artist/band `"Queen"`.
-
-###### Does it handle the case sensitive and presents as result "Queen" and "Queensland"?
+###### Does it handle the case-insensitive and presents as result "Queen" and "Queensland"?
 
 ##### Try to search for the first album date `"05-08-1967"`.