Remove the square brackets around csv|parquet to make it compulsory as in the code

Author: renetapopova

modules/ROOT/pages/tools/neo4j-admin/neo4j-admin-import.adoc

@@ -242,7 +242,7 @@ Possible values are:
 |Character set that input data is encoded in.
 |UTF-8
 
-|--input-type[=csv\|parquet]
+|--input-type=csv\|parquet
 |label:beta[] File type to import from. Can be csv or parquet. Defaults to csv.
 |csv
 
@@ -789,7 +789,7 @@ Possible values are:
 |Character set that input data is encoded in.
 |UTF-8
 
-|--input-type[=csv\|parquet]
+|--input-type=csv\|parquet
 |label:beta[] File type to import from. Can be csv or parquet. Defaults to csv.
 |csv