Add hints to use macro packages for new users (#3238)

docs/src/index.md

@@ -34,8 +34,15 @@ tool for working with tabular data in Julia -- as noted below, there are some
 other great libraries for certain use-cases -- but it provides great data
 wrangling functionality through a familiar interface.
 
-To understand the toolchain in more detail, have a look at the tutorials in this manual. New
-users can start with the [First Steps with DataFrames.jl](@ref) section.
+To understand the toolchain in more detail, have a look at the tutorials in this manual.
+New users can start with the [First Steps with DataFrames.jl](@ref) section.
+
+You may find the [DataFramesMeta.jl](https://juliadata.github.io/DataFramesMeta.jl/stable/)
+package or one of the other convenience packages discussed in
+the [Data manipulation frameworks](@ref) section of this manual
+helpful when writing more advanced data transformations,
+especially if you do not have a significant programming experience.
+These packages provide convenience syntax similar to [dplyr](https://dplyr.tidyverse.org/) in R.
 
 ## DataFrames.jl and the Julia Data Ecosystem