Explicitly initialize EEPROMSettings

As the plugin now depends on EEPROMSettings, document that it needs to be
initialized first, and adjust the example accordingly too.

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

README.md

@@ -24,6 +24,7 @@ The extension provides a `HostOS` singleton object.
 
 ```c++
 #include <Kaleidoscope.h>
+#include <Kaleidoscope-EEPROM-Settings.h>
 #include <Kaleidoscope-HostOS.h>
 
 void someFunction(void) {
@@ -35,7 +36,7 @@ void someFunction(void) {
   }
 }
 
-KALEIDOSCOPE_INIT_PLUGINS(HostOS)
+KALEIDOSCOPE_INIT_PLUGINS(EEPROMSettings, HostOS)
 
 void setup(void) {
   Kaleidoscope.setup ();
@@ -96,3 +97,6 @@ these reasons, this functionality was removed. The `autoDetect()` method is now
 a no-op, and is deprecated. The `Kaleidoscope/HostOS-select.h` header is
 similarly obsolete. Both of these produce deprecation messages now, and will be
 removed by 2019-01-14.
+
+Furthermore, `HostOS` now depends on `Kaleidoscope-EEPROM-Settings`, that plugin
+should be initialized first.

examples/HostOS/HostOS.ino

@@ -15,6 +15,8 @@
  * this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <Kaleidoscope.h>
+#include <Kaleidoscope-EEPROM-Settings.h>
 #include <Kaleidoscope-HostOS.h>
 
 // *INDENT-OFF*
@@ -38,7 +40,7 @@ const Key keymaps[][ROWS][COLS] PROGMEM = {
 };
 // *INDENT-ON*
 
-KALEIDOSCOPE_INIT_PLUGINS(HostOS);
+KALEIDOSCOPE_INIT_PLUGINS(EEPROMSettings, HostOS);
 
 void setup() {
   Serial.begin(9600);