tests/ccs811: satisfy Codacy

tests/driver_ccs811/README.md

@@ -9,10 +9,9 @@ sensor can be used for periodic polling.
 
 The test application demonstrates the use of the CCS811 using
 
-  - data-ready status function ```ccs811_data_ready``` to wait for new data and
-
-  - default configuration parameters, that is, the measurement mode
-    ```CCS811_MODE_1S``` with one measurement per second.
+- data-ready status function ```ccs811_data_ready``` to wait for new data and
+- default configuration parameters, that is, the measurement mode
+  ```CCS811_MODE_1S``` with one measurement per second.
 
 Please refer ```$(RIOTBASE)/tests/driver_ccs811_full``` to learn how
 to use the CCS811 with interrupts.

tests/driver_ccs811_full/README.md

@@ -12,18 +12,16 @@ sensor can be used with interrupts.
 The test application demonstrates the use of the CCS811 and pseudomodule
 ```ccs811_full``` using
 
-  - data-ready interrupt ```CCS811_INT_DATA_READY``` and
-
-  - default configuration parameters, that is, the measurement mode
-    ```CCS811_MODE_1S``` with one measurement per second.
+- data-ready interrupt ```CCS811_INT_DATA_READY``` and
+- default configuration parameters, that is, the measurement mode
+  ```CCS811_MODE_1S``` with one measurement per second.
 
 The default configuration parameter for the interrupt pin has to be
 overridden according to the hardware configuration by defining
 ```CCS811_PARAM_INT_PIN``` before ```ccs811_params.h``` is included, e.g.,
-```
-#define CCS811_PARAM_INT_PIN     (GPIO_PIN(0, 7))
-```
-or via the CFLAGS variable in the make command.
-```
-CFLAGS="-DCCS811_PARAM_INT_PIN=\(GPIO_PIN\(0,7\)\)" make -C tests/driver_ccs811 BOARD=...
-```
+
+    #define CCS811_PARAM_INT_PIN     (GPIO_PIN(0, 7))
+
+or via the `CFLAGS` variable in the make command.
+
+    CFLAGS="-DCCS811_PARAM_INT_PIN=\(GPIO_PIN\(0,7\)\)" make -C tests/driver_ccs811 BOARD=...