Updates related to kwantspectrum change of name and availability on pipy

INSTALL.rst

@@ -81,11 +81,10 @@ Install instructions for Linux systems
         $ module load mpi/openmpi-x86_64 # can be mpi/mpich-x86_64
         $ export CPATH=/usr/include/openmpi-x86_64/ # can be /usr/include/mpich-x86_64/, it should be consistent with the above line
 
-3. Install latest tkwant, kwantspectrum and tkwantoperator:
+3. Install latest tkwant along with its dependencies, then tkwantoperator:
     .. code:: shell
         
         $ pip3 install git+https://gitlab.kwant-project.org/kwant/tkwant.git
-        $ pip3 install git+https://gitlab.kwant-project.org/kwant/kwantspectrum.git@069a5c5beca0be954dd7a0810e306d425e90edec
         $ pip3 install git+https://gitlab.kwant-project.org/kwant/tkwantoperator.git
 
    *Note*: To install updates in any of the git repositories, simply redo the pip install.
@@ -163,7 +162,7 @@ local tkwantoperator source code repository from the command line:
 
 .. code:: shell
 
-    $ cd path/to/tkwantoperaotor/tkwantoperator/doc
+    $ cd path/to/tkwantoperator/tkwantoperator/doc
     $ make html
 
 The generated HTML documentation will then be found in the ``doc/build/html`` folder. The root webpage is ``doc/build/html/index.html``, it can be opened with a web browser to browse the generated documentation.

doc/source/conf.py

@@ -328,5 +328,5 @@ intersphinx_mapping = {
     'mpi4py': ('https://mpi4py.readthedocs.io/en/stable/', None),
     'kwant': ('https://kwant-project.org/doc/1/', None),
     'tkwant': ('https://kwant-project.org/extensions/tkwant/', None),
-    'kwant_spectrum': ('https://kwant-project.org/extensions/spectrum/', None)
+    'kwantspectrum': ('https://kwant-project.org/extensions/kwantspectrum/', None)
 }