docs, now with style

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+.. highlight:: cpp
+
+.. _lang-break:
+
+``break``
+=========
+
+``break`` is used to exit from a :ref:`while <lang-while>`\ ,
+:ref:`for <lang-for>`\ , or :ref:`do/while <lang-dowhile>` loop,
+bypassing the normal loop condition.  It is also used to exit from a
+:ref:`switch <lang-switchcase>` statement.
+
+
+Example
+-------
+
+::
+
+    for (x = 0; x < 255; x ++)
+    {
+        digitalWrite(PWMpin, x);
+        sens = analogRead(sensorPin);
+        if (sens > threshold){      // bail out on sensor detect
+           x = 0;
+           // this line of code means that we'll immediately exit
+           // from the "for" loop:
+           break;
+        }
+        delay(50);
+    }
+
+
+
+
+.. include:: cc-attribution.txt