Update README.md

Author: MCUdude

README.md

@@ -54,7 +54,6 @@ Make sure you connect an ISP programmer, and select the correct one in the "Prog
 <b>*</b> When using the 18.432 MHz option (or any frequency by which 64 cannot be divided evenly), micros() is 4-5 times slower (~110 clocks). It reports the time at the point when it was called, not the end.
 This clock frequency is not recommended if your application relies on accurate timing, but is [superb for UART communication](http://wormfood.net/avrbaudcalc.php?bitrate=300%2C600%2C1200%2C2400%2C4800%2C9600%2C14.4k%2C19.2k%2C28.8k%2C38.4k%2C57.6k%2C76.8k%2C115.2k%2C230.4k%2C250k%2C.5m%2C1m&clock=18.432&databits=8). 
 Millis() is not effected, only micros() and delay(). Micros() executes equally fast at all clock speeds, but returns wrong values with anything that 64 doesn't divide evenly by.
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 <b>**</b> There might be some issues related to the internal oscillator. It's factory calibrated, but may be a little "off" depending on the calibration, ambient temperature and operating voltage. If uploading failes while using the 8 MHz internal oscillator you have three options:
@@ -145,4 +144,4 @@ This core uses the standard Arduino UNO pinout and will not break compatibility
 
 ##Minimal setup
 Here is a simple schematic showing a minimal setup using an external crystal. Skip the crystal and the two 22pF capacitors if you're using the internal oscillator. If you don't want to mess with breadboards, components and wiring; simply use your Arduino UNO!<br/>
-<img src="http://i.imgur.com/d7Xhtht.png" width="750">
+<img src="http://i.imgur.com/d7Xhtht.png" width="750">