Updating references to languages in docs to include R

Signed-off-by: Elijah Cúchulainn Reid <[email protected]>

Author: Wizzzzzzard

README.md

@@ -10,7 +10,7 @@ The SAS extension includes many [features](https://sassoftware.github.io/vscode-
 
 - SAS syntax highlighting and help, code completion, and code snippets
 - Navigate SAS Content and libraries, including table viewer
-- Create notebooks for SAS, SQL, Python and other languages
+- Create notebooks for SAS, SQL, Python, R, and other languages
 
 <img src="website/static/images/featuresGlance.png"/>
 

website/docs/Features/sasNotebook.md

@@ -25,7 +25,7 @@ To export your SAS Notebook to other formats, click the **More Actions** (`...`)
 
 ### SAS
 
-PYTHON and SQL code cells will be wrapped with PROC PYTHON/SQL respectively to be executed on SAS. Markdown cells will be converted to block comments.
+PYTHON, R, and SQL code cells will be wrapped with PROC PYTHON/RLANG/SQL respectively to be executed on SAS. Markdown cells will be converted to block comments.
 
 ### HTML
 

website/docs/README.md

@@ -16,4 +16,4 @@ The SAS extension includes the following features:
 
 - Access to SAS Content and libraries
 
-- Ability to create notebooks for SAS, SQL, Python, and other languages
+- Ability to create notebooks for SAS, SQL, Python, R, and other languages