[docs] minor changes in the manual text

docs/content/3.manual/manual.yml

@@ -293,17 +293,17 @@ sections:
           say, `curl`.
 
           An important point about the identity filter is that it 
-          guarantees to preserve the literal representation of values. 
-          This is particularly important when dealing with numbers 
-          which otherwise get truncated to an IEEE754 double precision 
+          guarantees to preserve the literal decimal representation 
+          of values. This is particularly important when dealing with numbers 
+          which can't be losslessly converted to an IEEE754 double precision 
           representation.
 
           jq doesn't truncate the literal numbers to double unless there
           is a need to make arithmetic operations with the number.
           Comparisions are carried out over the untruncated big decimal 
           representation of the number.
 
-          jq will also try to maintain the original precision of the provided
+          jq will also try to maintain the original decimal precision of the provided
           number literal. See below for examples. 
 
         examples: