Update concepts.md
Update concepts.md
jofomah/rules,jruizgit/rules,jruizgit/rules,jofomah/rules,jofomah/rules,jruizgit/rules,jruizgit/rules,jofomah/rules,jruizgit/rules,jofomah/rules,jruizgit/rules,jofomah/rules