change $ to % in install.rst

Signed-off-by: Cary Phillips <[email protected]>

website/install.rst

@@ -69,11 +69,12 @@ To build via CMake, you need to first identify three directories:
    libraries and headers, referred to below as ``$installdir``.  
 
 To build:
+
 .. code-block::
 
-    $ cd $builddir
-    $ cmake $srcdir --install-prefix $installdir
-    $ cmake --build $builddir --target install --config Release
+    % cd $builddir
+    % cmake $srcdir --install-prefix $installdir
+    % cmake --build $builddir --target install --config Release
 
 Note that the CMake configuration prefers to apply an out-of-tree
 build process, since there may be multiple build configurations
@@ -102,7 +103,7 @@ can specify a local install directory to cmake via the
 
 .. code-block::
 
-    $ cmake .. -DCMAKE_INSTALL_PREFIX=$Imath_install_directory
+    % cmake .. -DCMAKE_INSTALL_PREFIX=$Imath_install_directory
 
 Library Names
 -------------
@@ -179,7 +180,7 @@ variables, run:
 
 .. code-block::
 
-    $ cmake -LAH $imath_source_directory
+    % cmake -LAH $imath_source_directory
 
 You can customize these options three ways:
 
@@ -314,5 +315,5 @@ initial generation:
 
 .. code-block::
 
-    $ cmake -G “Ninja” ..
+    % cmake -G “Ninja” ..