line up repl commands

src/matrix/core.clj

@@ -134,6 +134,7 @@
    ((comp println #(pretty-matrix % add-bar)) m)
    m))
 
+;; repl commands
 (defn swap    [n m]       #(swap-rows % n m))
 (defn add     [from to]   #(add-rows % from to))
 (defn add-mul [n from to] #(add-rows-with-mul % n from to))