Add an explanation of recursive search.
Add an explanation of recursive search.

deekim/tldr,mshmoustafa/tldr,kuanyui/tldr,AgamAgarwal/tldr,slash3b/tldr,NegaMorgan/tldr,lord63-forks/tldr,bradparks/tldr,WANG-lp/tldr,lord63-forks/tldr,bradparks/tldr,katekyan/tldr,Qtrain/tldr,davidsiefert/tldr,UncommonPleb/tldr,mshmoustafa/tldr,cdminigun/tldr,Phizho/tldr,WALL-E/tldr,ArturSkowronski/tldr,deekim/tldr,slash3b/tldr,jeremyruppel/tldr,ostera/tldr,UncommonPleb/tldr,Parth-Mehrotra/tldr,WANG-lp/tldr,zoisom/tldr,Parth-Mehrotra/tldr,jeremyruppel/tldr,felixonmars/tldr,cptdeka10/tldr,igorshubovych/tldr,felixonmars/tldr,igorshubovych/tldr,cdminigun/tldr,UncommonPleb/tldr,ostera/tldr,rubenvereecken/tldr,rubenvereecken/tldr,Qtrain/tldr,katekyan/tldr,felixonmars/tldr,deekim/tldr,Phizho/tldr,Phizho/tldr,katekyan/tldr,e0i/tldr,cptdeka10/tldr,ArturSkowronski/tldr,zoisom/tldr,danieldiekmeier/tldr,e0i/tldr,cptdeka10/tldr,davidsiefert/tldr,danieldiekmeier/tldr,AgamAgarwal/tldr,zoisom/tldr,NegaMorgan/tldr,kuanyui/tldr,slash3b/tldr,WALL-E/tldr