improving documentation

git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@335 64b25241-fba3-4117-9849-534c7e92360d

src/algorithms/libs/pass_through.h

@@ -40,6 +40,9 @@
 
 class ConfigurationInterface;
 
+/*!
+ * \brief This class implements a block that connects input and output (does nothing)
+ */
 class Pass_Through : public GNSSBlockInterface
 {
 public:
@@ -53,6 +56,7 @@ public:
     {
         return role_;
     }
+    //! returns "Pass_Through"
     std::string implementation()
     {
         return "Pass_Through";