README.md in enumerable-statistics-1.0.1 vs README.md in enumerable-statistics-2.0.0.pre

- old
+ new

@@ -38,9 +38,17 @@
   - Calculates a standard deviation of values in an array or an enumerable
 - `Array#mean_variance`, `Enumerable#mean_variance`
   - Calculates a mean and a variance simultaneously
 - `Array#mean_stdev`, `Enumerable#mean_stdev`
   - Calculates a mean and a standard deviation simultaneously
+- `Array#median`
+  - Calculates a median of values in an array
+- `Array#percentile(q)`
+  - Calculates a percentile or percentiles of values in an array
+- `Array#value_counts`, `Enumerable#value_counts`, and `Hash#value_counts`
+  - Count how many items for each value in the container
+- `Array#histogram`
+  - Calculate histogram of the values in the array
 
 Moreover, for Ruby < 2.4, `Array#sum` and `Enumerable#sum` are provided.
 
 All methods scan a collection once to calculate statistics and preserve precision as possible.
 