README.md in HDRHistogram-0.1.7 vs README.md in HDRHistogram-0.1.8

@@ -75,13 +75,14 @@
 - `lowest_value`: The smallest possible value to be put into the histogram.  
 - `highest_value`: The largest possible value to be put into the histogram.  
 - `significant_figures`: The level of precision for this histogram, i.e. the number of figures in a decimal number that will be maintained.  E.g. a value of 3 will mean the results from the histogram will be accurate up to the first three digits. Must be a value between 1 and 5 (inclusive).
 - `:multiplier`: A multiplier to adjust all incoming values. If present, the raw value recorded in the histogram for `record(val)` will be `val * 1/multiplier`. Similarly, `percentile(pctl) => val * multiplier`. If `multiplier` < 1, `lowest_value` can be < 1 so that `lowest_value` * 1/`multiplier` == 1.
 - `:unit`: A unit for labeling histogram values. Useful for outputting things.
-  
-  
 
+#### `hdr = HDRHistogram.unserialize(serialized_histogram_string)`
+restore an HDRHistogram object and its data from serialized string.
+
 #### `hdr.record(value)`
 Records a `value` in the histogram, will round this `value` of to a precision at or better than the `significant_figures` specified at construction time.  
 Returns `false` if the value was not recorded, `true` otherwise.
 
 #### `hdr.record_corrected(value, expected_interval)`
@@ -144,6 +145,11 @@
 #  99.900%      999.423ms
 #  99.990%      999.935ms
 #  99.999%     1000.447ms
 # 100.000%     1000.447ms
 ```
+
 The above output assumes a :multiplier of 0.001 and a :unit of `:ms`
+
+#### `hdr.serialize`
+serialize the HDRHistogram object and data into a string
+