Fixed non-ASCII quotation marks that cause a precheck error.
diff --git a/README.md b/README.md
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A template SoC for Google SKY130 free shuttles. It is still WIP. The current SoC architecture is given below.
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<img src="/doc/ciic_harness.png" width="75%" height="75%">
</p>
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This is the user space. It has limited silicon area (TBD, about 3.1mm x 3.8mm) as well as a fixed number of I/O pads (37) and power pads (10). See [the Caravel premliminary datasheet](doc/caravel_datasheet.pdf) for details.
The repository contains a [sample user project](/verilog/rtl/user_proj_example.v) that contains a binary 32-bit up counter. </br>
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<img src="/doc/counter_32.png" width="50%" height="50%">
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