Update README.md

Readme edit

Author: jdsika

README.md

@@ -87,9 +87,9 @@ Documentation
 -------------
 
 In order to generate the doxygen documentation for OSI, please follow the following steps: 
-1. Install [Doxygen](http://www.stack.nl/~dimitri/doxygen/download.html), set an environmental variable 'doxygen' with the path to the binary file and add it to PATH ´<old-path>;%doxygen%´.
+1. Install [Doxygen](http://www.stack.nl/~dimitri/doxygen/download.html), set an environmental variable 'doxygen' with the path to the binary file and add it to PATH `<old-path>;%doxygen%`.
 2. Download and unzip the [zip file containing the filter proto2cpp.py](https://sourceforge.net/p/proto2cpp/wiki/Home/ ).
-3. Install [graphviz-2.38](http://www.graphviz.org/Download_windows.php ), set an environmental variable 'graphviz' with the path to the binary file and add it to PATH ´<old-path>;%graphviz%´.
+3. Install [graphviz-2.38](http://www.graphviz.org/Download_windows.php ), set an environmental variable 'graphviz' with the path to the binary file and add it to PATH `<old-path>;%graphviz%`.
 4. From the cmd navigate to the build directory and run: 
 ```cmd
 cmake -DFILTER_PROTO2CPP_PY_PATH=<path-to-proto2cpp.py> <path-to-CMakeLists.txt>