Revised documentation of SlewRateLimiter (#4014)

This has changes to the documentation only

Buildings/Controls/OBC/CDL/Reals/LimitSlewRate.mo

@@ -16,10 +16,10 @@ block LimitSlewRate "Limit the increase or decrease rate of input"
   parameter Boolean enable=true
     "Set to false to disable rate limiter";
   Buildings.Controls.OBC.CDL.Interfaces.RealInput u
-    "Connector of Real input signal"
+    "Input signal to be rate of change limited"
     annotation (Placement(transformation(extent={{-140,-20},{-100,20}})));
   Buildings.Controls.OBC.CDL.Interfaces.RealOutput y
-    "Connector of Real output signal"
+    "Rate of change limited output signal"
     annotation (Placement(transformation(extent={{100,-20},{140,20}})));
 
 protected
@@ -59,8 +59,7 @@ equation
 The block limits the rate of change of the input by a ramp.
 </p>
 <p>
-This block computes a threshold for the rate of change between
-input <code>u</code> and output <code>y</code> as
+This block computes a threshold for the rate of change of the output <code>y</code> as
 <code>thr = (u-y)/Td</code>, where <code>Td &gt; 0</code> is  parameter.
 The output <code>y</code> is computed as follows:
 <ul>