Added $'s

docs/install.md

@@ -2,26 +2,26 @@
 
 ## Debian/Ubuntu
 ```
-sudo apt-get install libclang-dev make cmake g++ git
+$ sudo apt-get install libclang-dev make cmake g++ git
 ```
 
 ```
-git clone https://github.com/cppit/libclangmm.git
-cd libclangmm
-cmake .
-make
-sudo make install
+$ git clone https://github.com/cppit/libclangmm.git
+$ cd libclangmm
+$ cmake .
+$ make
+$ sudo make install
 ```
 
 ## OS X with Homebrew (http://brew.sh/)
 ```
-brew install cmake --with-clang llvm
+$ brew install cmake --with-clang llvm
 ```
 
 ```
-git clone https://github.com/cppit/libclangmm.git
-cd libclangmm
-cmake .
-make
-make install
+$ git clone https://github.com/cppit/libclangmm.git
+$ cd libclangmm
+$ cmake .
+$ make
+$ make install
 ```