Re-arrange to put "loops" before "maps".

;)

added topics for word search

added topics for the queen-attack problem

Added @FridaTveit suggestions to nucleotide-count topics

* Updated Food-Chain Topics :)

* Removing plus signs from tags for food-chain

* minus comma

Added four tags to nucleotide-count topics as described in #808.

* issue fixed

* minor bug fixed

* issue fixed #789

* minor bug fixed

Referencing #788

conditionals: finding if a char is repeated
loops: looping through a string's characters
parsing: parsing a string for repeated characters
strings: self-explanatory :)

referencing #788

conditionals: finding if a char is repeated
loops: looping through a string's characters
parsing: parsing a string for repeated characters
strings: self-explanatory :)

Fixes #782