diff --git a/docs/Reference.md b/docs/Reference.md
index 65f8c87..9083fc4 100644
--- a/docs/Reference.md
+++ b/docs/Reference.md
@@ -9,14 +9,16 @@ The HomeSpan Library is invoked by including *HomeSpan.h* in your Arduino sketch
 At runtime this HomeSpan will create a global object named `homeSpan` that supports the following methods:
 
 * `void begin(Category catID, char *displayName, char *hostNameBase, char *modelName);` 
-  * Initializes HomeSpan
+  * Initializes HomeSpan.
   * **Must** be called at the beginning of each sketch before any other HomeSpan functions and is typically placed near the top of the Arduino `setup()` method, but **after** `Serial.begin()` so that initialization diagnostics can be output to the Serial Monitor.
-  * All arguments are **optional**
-    * *catID* - the HAP Category HomeSpan broadcasts for pairing to HomeKit.  Default is [Category::Lighting](Categories.md)
-    * *displayName* - the MDNS display name broadcast by HomeSpan.  Default is "HomeSpan Server"
-    * *hostNameBase* - the full MDNS host name is broadcast by HomeSpan as *hostNameBase-DeviceID*.local, where DeviceID is a unique 6-byte code generated automatically by HomeSpan.  Default is "HomeSpan"
-    * *modelName* - the HAP model name HomeSpan broadcasts for pairing to HomeKit.  Default is "HomeSpan-ESP32"
+  * All arguments are **optional**.
+    * *catID* - the HAP Category HomeSpan broadcasts for pairing to HomeKit.  Default is [Category::Lighting](Categories.md).
+    * *displayName* - the MDNS display name broadcast by HomeSpan.  Default is "HomeSpan Server".
+    * *hostNameBase* - the full MDNS host name is broadcast by HomeSpan as *hostNameBase-DeviceID*.local, where DeviceID is a unique 6-byte code generated automatically by HomeSpan.  Default is "HomeSpan".
+    * *modelName* - the HAP model name HomeSpan broadcasts for pairing to HomeKit.  Default is "HomeSpan-ESP32".
  
  * `void poll()`
-   * Checks for HAP requests, local commands, and device activity
-   * **Must** be called repeatedly in each sketch and typically placed at the top of the Arduino `loop()` method
+   * Checks for HAP requests, local commands, and device activity.
+   * **Must** be called repeatedly in each sketch and typically placed at the top of the Arduino `loop()` method.
+   
+The following **optional** `homeSpan` methods override various HomeSpan initialization parameters used in `begin()`, and therefore **should** be called before `begin()` to take effect.  If not called, HomeSpan uses the default parameter indicated.