fixed numering of hands-on in scripts

hands-on/03_datawrangling/hands-on1.R

 # R Statistical Software in Action for Newcomers
-# Data manipulation
+# Data wrangling
 #
-# Hands-on 2
+# Hands-on 1
 
 # 1 We will use data on flights from Houston airport again. This dataset is stored
 # in the file hflights.RData. We will load the data with load() (Which is for

hands-on/03_datawrangling/hands-on1_solutions.R

 # R Statistical Software in Action for Newcomers
-# Data manipulation
+# Data wrangling
 #
-# Hands-on 2
+# Hands-on 1
 
 # 1 We will use data on flights from Houston airport again. This dataset is stored
 # in the file hflights.RData. We will load the data with load() (Which is for

hands-on/03_datawrangling/hands-on2.R

 # R Statistical Software in Action for Newcomers
-# Data manipulation
+# Data wrangling
 #
-# Hands-on 3
+# Hands-on 2
 
 # 1. Load the dplyr and tidyr packages or load tidyverse which will load both
 # as well as further packages. Remember, it's library().

hands-on/03_datawrangling/hands-on2_solutions.R

-################################################################################
-# Introduction to "R"
-# Data manipulation
+# R Statistical Software in Action for Newcomers
+# Data wrangling
 #
-# Hands-on 3
-################################################################################
+# Hands-on 2
 
 setwd('')