remove beta from GA csv export (#458)

Author: jpadams

asciidoc/courses/gds-product-introduction/modules/2-graph-management/lessons/1-graph-catalog/lesson.adoc

@@ -128,7 +128,7 @@ In a data science workflow, you may encounter situations where you need to bulk
 The graph catalog has two methods for export:
 
 . `gds.graph.export` to export a graph into a new database - effectively copying the projection into a separate Neo4j database
-. `gds.beta.graph.export.csv` to export a graph to csv files
+. `gds.graph.export.csv` to export a graph to csv files
 
 
 === Dropping Graphs