update proceedures for changing finance commitee membership change

Author: hamogu

finance/finance-ctte-procedures.rst

@@ -11,8 +11,9 @@ When a member of the committee joins the committee, the following steps are requ
 
 * Confirmation the member is aware of these steps, and has read the Code of Conduct
 * Adding the member to the google group/email list
+* Add name to core-maintainers
 * Add write access to the running notes
-* Addition of name to `wiki page <https://github.com/astropy/astropy-project/wiki/Financial-Management>`_.
+* Add write access to financial spreadsheets
 * Addition of name to `astropy team page <https://www.astropy.org/team.html>`_.
 
 
@@ -21,7 +22,4 @@ Removing a Member from the Committee
 
 When a member of the committee leaves, the following steps are required:
 
-* Removal from google group/email list
-* Revocation of write access to the running notes
-* Removal of name from `wiki page <https://github.com/astropy/astropy-project/wiki/Financial-Management>`_.
-* Removal of name from `astropy team page <https://www.astropy.org/team.html>`_.
+* undo steps above