Fix link formatting

examples/c-dataflow/README.md

@@ -10,7 +10,7 @@ The [`dataflow.yml`](./dataflow.yml) defines a simple dataflow graph with the fo
   - The node has a single input named `timer` that is mapped to a dora-provided periodic timer (`dora/timer/secs/1`).
   - Whenever the node receives a timer tick, it sends out a message with ID `tick` and a counter value as data (just a single byte).
   - After receiving 10 timer inputs, the node exits.
-- The [`operator.c](./operator.c) file defines a dora _operator_ that is plugged as a shared library into a dora runtime. Instead of defining a `main` function, it implements a template of `dora_*` functions, which are invoked by the dora runtime, e.g. when new input is available.
+- The [`operator.c`](./operator.c) file defines a dora _operator_ that is plugged as a shared library into a dora runtime. Instead of defining a `main` function, it implements a template of `dora_*` functions, which are invoked by the dora runtime, e.g. when new input is available.
   - The operator takes the `tick` messages created by the `node.c` node as input. For each input value, it checks the ID and then prints the received message to `stdout`.
   - It counts the received values and outputs a string of the format _"The current counter value is ..."_.
 - The [`sink.c`](./sink.c) file defines a custom node again, which takes the output string of the operator as input. It prints each received input to stdout and exits as soon as the input stream is closed.