Minor changes.

README.md

@@ -13,8 +13,8 @@ pe1nnz@amsat.org
 ![](top.png)
 
 ## List of features:
-- **Simple, fun and versatile QRP SSB HF transceiver** with embedded **DSP and SDR functions**;
-- **[EER] Class-E** driven SSB transmit-stage
+- **[Simple, fun and versatile] QRP SSB HF transceiver** with embedded **DSP and SDR functions**;
+- **[EER Class-E]** driven SSB transmit-stage
 - Approximately **5W PEP SSB output** from 13.8V supply
 - **All-Mode support: USB, LSB, experimental modes: CW, AM, FM**
 - **DSP filters: 4000, 2500, 1700, 500, 200, 100, 50 Hz passband**
@@ -63,7 +63,7 @@ Below the layout with components marked in red that needs to be changed; gray co
 Below the wires that needs to be installed on the bottom PCB. Note that a circle represents resistor R50/R52 that is in series with the wire and the pad at which the circle is drawn (the resistor is no longer connected to its original neighbour pad and its probably the best to place this wiring and resistor at the components side):
 ![pcb](pcb.png)
 
-See here the resulting modification (includes PA bias mod <sup>[note 3](#note3)</sup>, does not include LPFs):
+See here the completed transceiver with the modifications applied (includes PA bias mod <sup>[note 3](#note3)</sup>, does not include LPFs):
 ![](pcb-top.png)
 ![](pcb-bottom.png)
 
@@ -153,7 +153,7 @@ The following performance measurements were made with QCX-SSB R1.01, a modified
 - Alternatively, in case you have an ATMEGA328P chip with Arduino bootloader, you can place the chip in an Arduino UNO board and upload directly (without the need for a ISP cable and QCX) by specifying 'arduino' programmer and baudrate 115200.
 - Alternatively, in case you have an [Arduino 1.8.9] (or newer) environment installed, you can upload the [QCX-SSB Sketch] directly from the Arduino environment (without using AVRDudess and firmware file); make sure "Tools > Board > Arduino/Genuino Uno",  "Tools > Port > /dev/ttyUSB0 or ttyACM0", and then "Sketch > Upload" is selected, while the ATMEGA328P chip is placed in the Arduino UNO socket. It is also possible to use [Arduino as ISP] method: upload this variation of [ArduinoISP] to the Arduino board and select "Tools > Programmer > Arduino as ISP", and "Sketch > Upload Using Programmer".
 2. <a name="note2"/>The occupied SSB bandwidth can be further reduced by restricting the maximum phase change (set MAX_DP to half a unit-circle _UA/2 (equivalent to 180 degrees)). Audio-input can be attenuated by increasing parameter MIC_ATTEN (6dB per step).
-3. Alternatively, the PA MOSFETs can be directly biased by the PWM envelope signal, basically making the key-shaping circuit redundant. To do so, Q6,Q4,R41,R42,C32,C31 can be removed entirely, whereby C-E pads of Q6 are wired, and where a 100nF capacitor is inserted at IC3A-pin3 and G of Q1-3, and where a 10k resistor is placed at G-D pads of Q4, a 10nF capacitor between S-D pads of Q4, and where a 10k resistor is placed between D of Q4 and G of Q1-3.
+3. <a name="note3"/>Alternatively, the PA MOSFETs can be directly biased by the PWM envelope signal, basically making the key-shaping circuit redundant. To do so, Q6,Q4,R41,R42,C32,C31 can be removed entirely, whereby C-E pads of Q6 are wired, and where a 100nF capacitor is inserted at IC3A-pin3 and G of Q1-3, and where a 10k resistor is placed at G-D pads of Q4, a 10nF capacitor between S-D pads of Q4, and where a 10k resistor is placed between D of Q4 and G of Q1-3.
 
 
 ### Credits:
@@ -166,6 +166,7 @@ The following performance measurements were made with QCX-SSB R1.01, a modified
 - [Arduino PWM]
 - [Serial interface]
 --->
+[Simple, fun and versatile]: ucx.png
 
 [original schematic]: https://qrp-labs.com/images/qcx/HiRes.png
 
@@ -229,7 +230,7 @@ The following performance measurements were made with QCX-SSB R1.01, a modified
 
 [PI4AA June issue]: https://cdn.veron.nl/pi4aa/2019/PI4AA_Uitzending20190607.mp3
 
-[EER]: https://core.ac.uk/download/pdf/148657773.pdf
+[EER Class-E]: https://core.ac.uk/download/pdf/148657773.pdf
 
 [MBF]: https://www.arrl.org/files/file/QEX_Next_Issue/Mar-Apr2017/MBF.pdf