Minor edit.

README.md

@@ -15,7 +15,7 @@ Features
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 * Visualize excitation/emission spectra of any fluorophore of interest in the 250-900 nm range. The fluorophore color is automatically selected based on the emission peak in the visible range by using the [wave2color](https://github.com/ggirelli/wave2color) functions.
-* Visualize the transmission spectrum of any filter set of interest, overlayed to the fluorophore spectra.
+* Visualize the transmission spectrum of any filter or dicroic mirror of interest, overlayed to the fluorophore spectra.
 * Visualize the intensity spectrum of any light source of interest, overlayed to the fluorophore spectra.
 * Explore the spectra with the mouse, seeing the precise relative intensity and wavelength of any point of interest.
 * Quickly see a brief description of any spectrum by hovering over it with the mouse, and access the raw data by clicking on them.
@@ -40,7 +40,7 @@ Please, notice that **GoogleChrome** does not allow `crossorigin` requests from
 Usage
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-1. <u>Click</u> on the sources/filters/fluorophores (from the *Input* panel) to add them to the graph.
+1. <u>Click</u> on the sources/filters/mirrors/fluorophores (from the *Input* panel) to add them to the graph.
 2. <u>Click</u> on the selected filters/fluorophores (from the *Selected* panel) to remove them from the graph.
 3. <u>Hover</u> over a spectrum to visualize a short description below this paragraph.
 4. <u>Click</u> on a spectrum to visualize the raw data at the end of the page.