Small tutorial update

Former-commit-id: 5d3099640e2b92d7b8cbb6c9879dd490d5c55282

README.md

@@ -77,8 +77,16 @@ repositories. On Debian and derivatives, simply run `apt-get install doxygen`
 under root.
 
 
+Tutorials
+---------
+
+  * [Infinite system (lattice) tutorial][tutorial-infinite]
+  * [Finite system tutorial][tutorial-finite]
+
 [SCUFF-EM]: https://homerreid.github.io/scuff-em-documentation/
 [GSL]: https://www.gnu.org/software/gsl/
 [cmake]: https://cmake.org
 [TRITON-README]: README.Triton.md
+[tutorial-finite]: finite_systems.md
+[tutorial-infinite]: lattices.md
 

finite_systems.md

@@ -0,0 +1,3 @@
+Using QPMS library for simulating finite systems
+================================================
+

lattices.md

@@ -69,7 +69,7 @@ direct lattice vectors, `lMax` is the multipole degree cutoff,
 medium, `npart` number of particles in the unit cell, and `partN` are 
 the positions of these particles inside the unit cell.
 
-Assuming we have the `ew_gen_in` binary in our `${PATH}`, we can
+Assuming we have the `ew_gen_kin` binary in our `${PATH}`, we can
 now run e.g.
 ```
   for omega in $(cat omegalist); do
@@ -103,6 +103,7 @@ which would create a directory named `all` containing several
 Steps 3, 4
 ----------
 
-TODO. For the time being, see e.g. the [TODO SPECIFY] jupyter notebook
+TODO. For the time being, see e.g. the `SaraRect/dispersions.ipynb` jupyter notebook
+from the `qpms_ipynotebooks` repository
 for the remaining steps.