Fix yard documentation (#923)

Co-authored-by: taki <taki@users.noreply.github.com>

lib/money/money/arithmetic.rb

@@ -46,7 +46,7 @@ def eql?(other_money)
     # Compares two Money objects. If money objects have a different currency it
     # will attempt to convert the currency.
     #
-    # @param [Money] other_money Value to compare with.
+    # @param [Money] other Value to compare with.
     #
     # @return [Integer]
     #
@@ -103,7 +103,7 @@ def negative?
     # values. If +other_money+ has a different currency then its monetary value
     # is automatically exchanged to this object's currency using +exchange_to+.
     #
-    # @param [Money] other_money Other +Money+ object to add.
+    # @param [Money] other Other +Money+ object to add.
     #
     # @return [Money]
     #
@@ -116,7 +116,7 @@ def negative?
     # its monetary value is automatically exchanged to this object's currency
     # using +exchange_to+.
     #
-    # @param [Money] other_money Other +Money+ object to subtract.
+    # @param [Money] other Other +Money+ object to subtract.
     #
     # @return [Money]
     #

lib/money/rates_store/memory.rb

@@ -19,7 +19,7 @@ class Memory
       #
       # @param [Hash] opts Optional store options.
       # @option opts [Boolean] :without_mutex disables the usage of a mutex
-      # @param [Hash] rt Optional initial exchange rate data.
+      # @param [Hash] rates Optional initial exchange rate data.
       def initialize(opts = {}, rates = {})
         @rates = rates
         @options = opts