Fixed erroneous example.

- `TRUE` is not defined.
- Redundant comparisons in conditions are [not recommended](https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#es87-dont-add-redundant--or--to-conditions).

Author: jfjlaros

content/learn/08.contributions/00.arduino-writing-style-guide/arduino-writing-style-guide.md

@@ -59,7 +59,7 @@ if (somethingIsTrue) doSomething;
 Instead, use this:
 
 ```
-if (somethingIsTrue == TRUE) {
+if (somethingIsTrue) {
    doSomething;
 }
 ```
@@ -136,4 +136,4 @@ Here's a good title block:
 
 For digital input switches, the default is to use a pulldown resistor on the switch rather than a pullup. That way, the logic of a switch's interaction makes sense to the non-engineer.
 
-Keep your circuits simple. For example, bypass capacitors are handy, but most simple inputs will work without them. If a component is incidental, explain it later.
+Keep your circuits simple. For example, bypass capacitors are handy, but most simple inputs will work without them. If a component is incidental, explain it later.