Merge 'upstream/master' cursor location, trailing spaces, new youtube video

Change statusline location to LINE:COLUMN
chore: remove trailing spaces from readme
chore: link new installation youtube video

lua/kickstart/plugins/mini.lua

@@ -24,11 +24,11 @@ return {
       statusline.setup()
 
       -- You can configure sections in the statusline by overriding their
-      -- default behavior. For example, here we disable the section for
-      -- cursor information because line numbers are already enabled
+      -- default behavior. For example, here we set the section for
+      -- cursor location to LINE:COLUMN
       ---@diagnostic disable-next-line: duplicate-set-field
       statusline.section_location = function()
-        return ''
+        return '%2l:%-2v'
       end
 
       -- ... and there is more!