Add new file to make and index

docs/make.jl

@@ -26,6 +26,7 @@ makedocs(
             "Working with DataFrames" => "man/working_with_dataframes.md",
             "Importing and Exporting Data (I/O)" => "man/importing_and_exporting.md",
             "Joins" => "man/joins.md",
+            "Data Frame Manipulation Functions" => "man/manipulation_functions.md",
             "Split-apply-combine" => "man/split_apply_combine.md",
             "Reshaping" => "man/reshaping_and_pivoting.md",
             "Sorting" => "man/sorting.md",

docs/src/index.md

@@ -218,6 +218,7 @@ page](https://github.com/JuliaData/DataFrames.jl/releases).
 Pages = ["man/basics.md",
          "man/getting_started.md",
          "man/joins.md",
+         "man/manipulation_functions.md",
          "man/split_apply_combine.md",
          "man/reshaping_and_pivoting.md",
          "man/sorting.md",
@@ -277,7 +278,7 @@ missing please kindly report an issue
     during which it is deprecated. The situations where such a breaking change
     might be allowed are (still such breaking changes will be avoided if
     possible):
-    
+
     * the affected functionality was previously clearly identified in the
       documentation as being subject to changes (for example in DataFrames.jl 1.4
       release propagation rules of `:note`-style metadata are documented as such);