29717: fix upstream_url and some docs

build/pkgs/cubic_hecke_marin/checksums.ini

@@ -1,5 +1,5 @@
 tarball=cubic_hecke_marin-20200513.tar.bz2
-sha1=0afb0716b224b66fdd67b9b6e75b911030d15e1c
-md5=3ee0a0a4fc5a7739ad9932391d2d10b5
-cksum=398008749
-upstream_url=https://trac.sagemath.org/attachment/ticket/29717/cubic_hecke_marin-20200513.tar.bz2
+sha1=db05c5cb7a70b6c6987a1ece67e0a6fc4d11e1a0
+md5=7df73fad972fa6eee774aaae05ecd481
+cksum=3934881041
+upstream_url=https://trac.sagemath.org/raw-attachment/ticket/29717/cubic_hecke_marin-20200513.tar.bz2

src/doc/en/reference/databases/index.rst

@@ -62,5 +62,6 @@ database engine.
    sage/databases/cunningham_tables
    sage/databases/db_class_polynomials
    sage/databases/db_modular_polynomials
+   sage/databases/cubic_hecke_db
 
 .. include:: ../footer.txt

src/sage/databases/cubic_hecke_db.py

@@ -318,21 +318,24 @@ def _create_python_file(self, filename):
 
     def create_spkg_tarball(self):
         r"""
-        Create a tarball for the sage-package `cubic_heck_marin` in the `upstream` directory. This
+        Create a tarball for the sage-package ``cubic_heck_marin`` in the ``upstream`` directory. This
         utility should only be used by users who know what they do in case of a switch to a new
         version of the data files (that is if the original files on Iwan Marin's homepage have changed).
-        In that case in invocation of `sage -package update cubic_hecke_marin <new version>` and 
-        `sage -package update cubic_hecke_marin` will be necessary.
+        In that case in invocation of ``sage -package fix-checksum cubic_hecke_marin`` will be necessary.
 
         EXAMPLES::
 
             sage: from sage.databases.cubic_hecke_db import CubicHeckeDataBase
             sage: cha_db = CubicHeckeDataBase()
-            sage: cha_db.create_spkg_tarball()              # not tested (because of internet access)
-            Importing data for monomial_basis.sobj from http://www.lamfa.u-picardie.fr/marin/softs/H4/baseH4.maple
-            Importing data for regular_left_reprs.sobj from http://www.lamfa.u-picardie.fr/marin/softs/H4/MatricesRegH4.maple
-            Importing data for regular_right_reprs.sobj from http://www.lamfa.u-picardie.fr/marin/softs/H4/MatricesRegH4right.maple
-            Importing data for irred_split_reprs.sobj from http://www.lamfa.u-picardie.fr/marin/softs/H4/RepresentationsH25
+            sage: cha_db.create_spkg_tarball()    # not tested (because of internet access)
+            Importing data for monomial_basis.sobj
+               from http://www.lamfa.u-picardie.fr/marin/softs/H4/baseH4.maple
+            Importing data for regular_left_reprs.sobj
+               from http://www.lamfa.u-picardie.fr/marin/softs/H4/MatricesRegH4.maple
+            Importing data for regular_right_reprs.sobj
+               from http://www.lamfa.u-picardie.fr/marin/softs/H4/MatricesRegH4right.maple
+            Importing data for irred_split_reprs.sobj
+               from http://www.lamfa.u-picardie.fr/marin/softs/H4/RepresentationsH25
             py/
             py/MatricesRegH4.maple.py
             py/MatricesRegH4right.maple.py