Update headlines.md fixed typo issues

Author: SaiAryan1784

docs/development/headlines.md

@@ -3,7 +3,7 @@ The headings SHOULD allow for overview and not create noise.
 If it is a visually-whole section is not a control then it MUST have a heading to act as a label. 
 * There MUST be exactly one single h1 level per page. This is not necessarily the first element. 
 * Nesting SHOULD not have holes in it like h3 following h1 or h5 following h3 . 
-* The Breadcrumb does no longer bearing a h2 and thus h2 is freed up for use. 
+* The Breadcrumb no longer bears an h2 and thus h2 is freed up for use. 
 * Same UI-Elements MUST have the same headline level throughout ILIAS.
 
 ## Headlines for specific UI-Elements