Update CONTRIBUTING.md

fixed typos

Author: vvvlc

CONTRIBUTING.md

@@ -9,7 +9,7 @@ I was missing `sei()`, `cli()` and `attachInterrupt()` in ArduinoFake, here is l
     * `attachInterrupt()` was already in [Arduino.h](/src/arduino/Arduino.h) so we are done. 
     * `sei()` was not defined in [Arduino.h](/src/arduino/Arduino.h) so
        * create a new header file [avr/interrupt.h](/src/arduino/avr/interrupt.h) to cover interrupt related definitions with a content
-          ```c
+          ```c++
           /**
            * Fake version of avr/interrupt.h
            */
@@ -18,14 +18,14 @@ I was missing `sei()`, `cli()` and `attachInterrupt()` in ArduinoFake, here is l
        * add `#include "avr/interrupt.h"` in [Arduino.h](/src/arduino/Arduino.h)
 1. Find approriate place for your functions, in my case I extended [src/FunctionFake.h](/src/FunctionFake.h) for new functions
 	```c++
-    struct FunctionFake
+	struct FunctionFake
 	{
-    	...
+		...
 		virtual void attachInterrupt(uint8_t, void (*)(void), int mode) = 0;
-    	virtual void cli() = 0;
-    	virtual void sei() = 0;
-        ...
-    }
+		virtual void cli() = 0;
+		virtual void sei() = 0;
+		...
+	}
     ```    
 1. add default implementations into corresponding cpp file, in my case [src/FunctionFake.cpp](/src/FunctionFake.cpp).
 	```c++
@@ -41,7 +41,7 @@ I was missing `sei()`, `cli()` and `attachInterrupt()` in ArduinoFake, here is l
         ArduinoFakeInstance(Function)->sei();
     }
 	```
-1. **don't forgot to add TESTs** for new functionality, at least test if a function can be executed, in my case [test/test_functio.h](/test/test_functio.h)
+1. **don't forget to add TESTs** for new functionality, at least test if a function can be executed, in my case [test/test_function.h](/test/test_function.h)
 	```c++
     void test_attach(void)
     {
@@ -78,21 +78,33 @@ I was missing `sei()`, `cli()` and `attachInterrupt()` in ArduinoFake, here is l
     {
 		...
 		RUN_TEST(FunctionTest::test_attach);
-        RUN_TEST(FunctionTest::test_cli);        
-        RUN_TEST(FunctionTest::test_sei);
+		RUN_TEST(FunctionTest::test_cli);        
+		RUN_TEST(FunctionTest::test_sei);
 		...
     }
-1. excersice tests from command line
+1. excersice tests from command line, there are two ways based on your Makefile
+   * default project [Makefile](/Makefile), 
+     * execute `make`  
+     * verify
    ```
-   make clean all && test/main
+	Running tests...
+	Test project /home/vlcvi01/Dropbox/git/ArduinoFake/build
+	    Start 1: main
+	1/1 Test #1: main .............................   Passed    0.01 sec
+
+	100% tests passed, 0 tests failed out of 1
    ```
-   verify PASS of all tests	
+   * [eclipse based Makefile](https://www.mantidproject.org/Setting_up_Eclipse_projects_with_CMake) generated via `cmake -G "Eclipse CDT4 - Unix Makefiles"`.
+     * execute `make clean all && test/main`
+     * verify PASS of all tests	
    ```
+    ...
     .../ArduinoFake/test/main.cpp:184:FunctionTest::test_attach:PASS
     .../ArduinoFake/test/main.cpp:185:FunctionTest::test_sei:PASS
     .../ArduinoFake/test/main.cpp:186:FunctionTest::test_cli:PASS
-
+    ...
+    
     -----------------------
     39 Tests 0 Failures 0 Ignored 
     OK
-   ```
+   ```