Update readme

README.md

@@ -20,6 +20,17 @@ If you are using BLT as a CMake library (as you should!) this is done for you.
   - Standalone
     - The CMake options define global variables in a config file. If you are using logging standalone you will need to remove the config include.
     - Macros can be used in the same pattern of `BLT_DISABLE_LEVEL` to disable the various logging levels
+## blt::arg_parse
+blt::arg_parse found in `blt/parse/argparse.h` is an attempt at a near 1:1 replication of Python's argparse in C++. 
+Python's argparse is one of the best command line argument parsing solutions with some of the best documentation I've seen. 
+The goal was to create an API which would function exactly as the Python docs described, simplifying how much I needed to remember and document for this library.
+## blt::profile_t (v2)
+The newest version of my profiler solution now features a CPU cycle counter, CPU thread execution time, and wall time. It has more options for
+sorting and general printing while featuring a nicer codebase. It is an improvement over blt::profiling while maintaining (almost) complete backwards
+compatability. Due to changes in the ABI the `BLT_PRINT_PROFILE` macro deletes the internal profiles and intervals AND takes arguments which match
+the new formatting options for profiling v2. However, `BLT_START_INTERVAL`, `BLT_WRITE_PROFILE`, and `BLT_END_INTERVAL` are still the same.
+Documentation for this is coming soon, along with more profiling features. the `BLT_*` macros can be disabled by the standard `BLT_DISABLE_PROFILING`
+from the v1 profiler. It is encouraged to use the new blt::* profile functions over the macros however these currently cannot be disabled. (TODO)
 ---
 
 # **Features / Examples**