Add wordFrequency function

Resolves #1

Change-Id: Ifba8630d09559c1c3c31343fbdc3c849dae7d4ca
diff --git a/man/wordFrequency.Rd b/man/wordFrequency.Rd
new file mode 100644
index 0000000..a77dd8b
--- /dev/null
+++ b/man/wordFrequency.Rd
@@ -0,0 +1,19 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/derekovecs.R
+\name{wordFrequency}
+\alias{wordFrequency}
+\title{Get word frequency}
+\usage{
+wordFrequency(w = "Test", ...)
+}
+\arguments{
+\item{w}{The word to get the frequency of.}
+
+\item{...}{Additional parameters to pass to the API.}
+}
+\value{
+The absolute frequency of the word.
+}
+\description{
+Gets the absolute frequency of a word in the corpus.
+}