HTML beautification

grid_models.md

@@ -107,10 +107,17 @@ Parameter codes are not necessarily self explanatory. E.g. in the PSILARTEMP mod
 
 ```html
   <p>
-    The warning system model &laquo;Carrot rust fly temperature&raquo; is based on a Finnish temperature-based model (Markkula <em>et al</em>, 1998; Tiilikkala &amp; Ojanen, 1999; Markkula <em>et al</em>, 2000). The model determines the start of the flight period for the 1st and 2nd generation of carrot rust fly based on accumuleted degree-days (day-degrees) over a base temperature of 5,0 &deg;C. VIPS uses the model for the 1st generation only.
+    The warning system model &laquo;Carrot rust fly temperature&raquo; is based on a Finnish temperature-based model (Markkula <em>et al</em>, 1998; Tiilikkala &amp; Ojanen, 1999; 
+    Markkula <em>et al</em>, 2000). The model determines the start of the flight period for 
+    the 1st and 2nd generation of carrot rust fly based on accumuleted degree-days (day-degrees) 
+    over a base temperature of 5,0 &deg;C. VIPS uses the model for the 1st generation only.
   </p>
   <p>
-    Standard air temperature (temperature measured 2 m above ground) is used in the model. <span itemprop="DD">Degree-days</span> are defined for this model as the sum of the difference between a base temperature of 5,0 &deg;C and the mean temperature for all days with a temperature &gt;5,0 &deg;C, in other words (daily mean temperature &ndash; 5,0 &deg;C) from 1 March (beginning when the ground has thawed).
+    Standard air temperature (temperature measured 2 m above ground) is used in the model. 
+    <span itemprop="DD">Degree-days</span> are defined for this model as the sum of the difference 
+    between a base temperature of 5,0 &deg;C and the mean temperature for all days with a temperature 
+    &gt;5,0 &deg;C, in other words (daily mean temperature &ndash; 5,0 &deg;C) from 1 March 
+    (beginning when the ground has thawed).
   </p>
 ```
 In VIPS-web the label will be visible both in the parameter selector and in the