docs: update readme

Author: fspoettel

README.md

@@ -124,15 +124,15 @@ cargo all
 # Total: 0.20ms
 ```
 
-This runs all solutions sequentially and prints output to the command-line. Same as for the `solve` command, the `--release` flag runs an optimized build.
+This runs all solutions sequentially and prints output to the command-line. Same as for the `solve` command, the `--release` flag runs an optimized build and the `--time` flag outputs benchmarks.
 
-#### Update readme benchmarks
+### ➡️ Update readme benchmarks
 
-The template can output a table with solution times to your readme.
+The template can write benchmark times to the README via the `cargo time` command.
 
-In order to generate the benchmarking table, run `cargo time`. By default, this command checks for missing benchmarks, runs those solutions, and then updates the table. If you want to (re-)time all solutions, run `cargo time --force` flag. If you want to (re-)time a specific solution, run `cargo time <day>`.
+By default, this command checks for missing benchmarks, runs those solutions, and then updates the table. If you want to (re-)time all solutions, run `cargo time --all`. If you want to (re-)time one specific solution, run `cargo time <day>`.
 
-Please note that these are not "scientific" benchmarks, understand them as a fun approximation. 😉 Timings, especially in the microseconds range, might change a bit between invocations.
+Please note that these are not _scientific_ benchmarks, understand them as a fun approximation. 😉 Timings, especially in the microseconds range, might change a bit between invocations.
 
 ### ➡️ Run all tests