Tidy up wording

ruby.html.markdown

@@ -187,14 +187,14 @@ end
 #=> iteration 4
 #=> iteration 5
 
-# HOWEVER
-# No-one uses for loops
-# Under the hood for loops use the each method which takes a "block".
-# A block is a bunch of code that you can pass to a method like each.
+# HOWEVER, No-one uses for loops.
+# Instead you should use the "each" method and pass it a block.
+# A block is a bunch of code that you can pass to a method like "each".
 # It is analogous to lambdas, anonymous functions or closures in other programming languages.
-
-# The each method runs the block multiple times passing a counter.
-# You can iterate over a range like this:
+#
+# The "each" method of a range runs the block once for each element of the range.
+# The block is passed a counter as a parameter.
+# Calling the "each" method with a block looks like this:
 
 (1..5).each do |counter|
   puts "iteration #{counter}"
@@ -208,7 +208,7 @@ end
 # You can also surround blocks in curly brackets:
 (1..5).each {|counter| puts "iteration #{counter}"}
 
-# You can also iterate over the contents of data structures using each.
+# The contents of data structures can also be iterated using each.
 array.each do |element|
   puts "#{element} is part of the array"
 end