update README v0.4

Author: alt-romes

README.md

@@ -1,7 +1,7 @@
 ## Introduction
 
-This tool scrapes the LLVM-C API and (currently) prints all available API
-functions to `stdout`. It came to be from the lack of search options in the
+This tool scrapes the LLVM-C API and provides a TUI to search and navigate the
+API from the terminal. It came to be from the lack of search options in the
 [llvm-c](https://llvm.org/doxygen/group__LLVMC.html) official documentation, and
 difficulty to navigate the hyperlinks as a beginner to llvm.
 
@@ -10,7 +10,10 @@ all apparently related hyperlinks of sub-modules (in
 fact, this exact function was the "last-drop", and the reason why I wrote
 program), simply run the program, and then filter for `sext` by tapping `/` when the TUI loads.
 
-## v0.3 Preview
+Additionally, pressing enter on the selected item will open the corresponding
+llvm-c API webpage on the browser.
+
+## v0.4 Preview
 
 Searching for the function that returns the LLVM pointer type of an LLVM type
 ![Screenshot 2021-12-24 at 23 39 30](https://user-images.githubusercontent.com/21295306/147374322-b5833e04-1300-4b0f-b152-d2f91e970118.png)

TODO

@@ -1,3 +1,2 @@
 hoogle-like "search by types"
 TUI start with progress bar
-On enter visit webpage