[readme] Update

readme.md

@@ -1,9 +1,11 @@
-A tool to solve the 4th encounter, Verity, in Destiny 2 raid "Salvation's Edge".
+A tool for solving the 4th encounter of raid "Salvation's Edge" in Destiny 2.
 
 # Features
 
 - Can solve both solo rooms and dissection.
-- Can make a solution which meets triumph requirements.
+- Can make a solution which meets encounter triumph and challenge requirements.
+    - The resulting solution can meet triumph and challenge requirements
+      simultaneously or separately depending on configuration.
 
 # Installation
 
@@ -18,15 +20,15 @@ A tool to solve the 4th encounter, Verity, in Destiny 2 raid "Salvation's Edge".
 2. There is always a way to make the same 2 people go to solo rooms.
    Follow [this guide](https://www.reddit.com/r/raidsecrets/comments/1duz6qp/manipulating_who_goes_top_and_bottom_in_the/)
    on how to accomplish that.
-3. Wrote nicknames of two solo room players as aliases
+3. Write nicknames of two solo room players as aliases
    for `player1` and `player2` in the config file `config.toml`.
-4. The 3rd solo player will be always random, so use "The third" as the alias for `player3`.
+4. The 3rd solo player is always random, so use "The third" as the alias for `player3`.
 5. If you are doing the triumph, set `is_doing_triumph` to `true`.
 6. Start the encounter.
 7. Player 1 must tell symbols in solo rooms from left to right. Fill `inner_shapes`.
 8. Player 1 must tell their shape and other shape on the wall. Complete `player1`.
 9. Player 2 and player 3 must do the same. Complete `player2` and `player3` respectively.
-10. Meanwhile, someone in the main room must tell shapes held by the statues from the left to right.
+10. Meanwhile, someone in the main room must tell shapes held by the statues from left to right.
     Fill `held_shapes`.
 11. In opened PowerShell window type `python -m solve both` and press Enter.
 12. Follow the steps printed in the console window.
@@ -39,7 +41,7 @@ Run `python -m solve --help` to see more options.
 
 # Development
 
-# Running tests
+## Running tests
 
 1. Open terminal in the root of this project.
 2. Run `python -m unittest discover tests "test_*.py" .` to run all tests.