Update Rcpp.rmd

Typo
Merge pull request #47 from absolutelyNoWarranty/patch-1

Update Rcpp.rmd
Update Functional-programming.rmd

"FP programming" changed to "FP"
Merge pull request #48 from kdauria/patch-1

Fixing typo: Update Functional-programming.rmd
Fixed typo

Changed "because it takes a function as an arguments" to "because it takes a function as an argument"
Fixed typo
Fixed typo
Merge pull request #51 from kdauria/patch-3

Fixed typo
Merge pull request #50 from kdauria/patch-2

Fixed typo
Merge pull request #49 from kdauria/patch-1

Fixed typo