Update README.md

README.md

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 license: afl-3.0
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-VLP Dataset Metadata
-This dataset was acquired during the dissertation entitled Optical Camera Communications and Machine Learning for Indoor Visible Light Positioning. This work was carried out in the academic year
+# VLP Dataset Metadata
+This dataset was acquired during the dissertation entitled **Optical Camera Communications and Machine Learning for Indoor Visible Light Positioning**. This work was carried out in the academic year
 2020/2021 at the Instituto de Telecomunicacoes in Aveiro. 
 
 The images that constitute this dataset were acquired over a grid with 15 regularly spaced reference
@@ -11,4 +11,4 @@ defined in the room along with the position of the LED luminaires. During the da
 the CMOS image sensor (Sony IMX219) was positioned parallel to the floor at a height of 25.6 cm
 facing upwards, i.e. with pitch and yaw angles equal to 0. All images were saved as TIFF (Tagged
 Image File Format) with a resolution of 3264 × 2464 pixels and exposure and readout times equal to
-9 µs and 18 µs, respectively
+9 µs and 18 µs, respectively.