Update doc/source/user/workbench.rst

Co-authored-by: Paul Romano <paul.k.romano@gmail.com>

Author: zhieejhia93

doc/source/user/workbench.rst

@@ -11,7 +11,7 @@ Workbench can be found on the Workbench
 `Gitlab repository <https://code.ornl.gov/neams-workbench/downloads>`.
 
 To set up WATTS in the Workbench environment, you first need to first provide the path to
-where Workbench is installed in `workbench.sh` under the `scripts` directory. User can
+where Workbench is installed in `workbench.sh` under the `scripts` directory. You can
 then run `setup_conda_wb.sh` under the same directory to set up WATTS within
 the Workbench environment.