Reference

All functions
CleverClean()	Returns a long preprocessed string from a vector of strings, converts them to lower case and removes punctuation and digits
CleverStemmer	This function performs stemming on a string or a character vector and returns a character vector
CleverStopwords()	This function returns a comprehensive list of English stopwords that allows adding more customized words.
CleverWordCloud()	This function generates a meaningful word cloud with customized stopwords