Add scaling methods to grid and field

CHANGELOG.rst

@@ -2,6 +2,32 @@
 Changelog
 =========
 
+0.3.4 (2020-10-01)
+------------------
+
+* Add scaling of fields and grids by factors
+
+0.3.3 (2020-09-30)
+------------------
+
+* Bug fixes to plot
+
+0.3.2 (2020-09-30)
+------------------
+
+* Add useful functions and functionality for plotting and combining different grids and fields in `plot` submodule.
+
+0.3.1 (2020-09-21)
+------------------
+
+* Adds a method for summing fields within a grid object (e.g. to make an incoherent sum over frequencies)
+  and a function for adding grid (e.g. to add one analysis output to another).
+
+0.3.0 (2020-06-21)
+------------------
+
+* Introduce analysis submodule
+
 0.2.0 (2020-04-28)
 ------------------