Update INSTALL

INSTALL

@@ -2,18 +2,16 @@ Header only version:
 ==================================================================
 Just copy the files to your build tree and use a C++11 compiler.
 Or use CMake:
-"
   add_executable(example_header_only example.cpp)
   target_link_libraries(example_header_only spdlog::spdlog_header_only)
-"
+
 
 Compiled library version:
 ==================================================================
 CMake:
-"
   add_executable(example example.cpp)
   target_link_libraries(example spdlog::spdlog)
-"
+
 
 Or copy src/spdlog.cpp to your build tree and pass the -DSPDLOG_COMPILED_LIB to the compiler.