Add readme updates

README.md

@@ -12,6 +12,13 @@ Requires:
 -[-7>+<]>-.-[->+5<]>++.+7..+3.[-3>+<]>-5.--[->+4<]>-.-8.+3.-6.-8.
 ```
 
+## Usage
+
+```sh
+./bfc -h #Help
+./bfc prog.bfe #Execute
+./bfc prog.bfe -t #Translate file to bf
+```
 
 ## Setup oddities
 
@@ -19,7 +26,6 @@ Requires:
 2. Copy `antlr-4.8-complete.jar` to `./thirdparty/antlr`.
 3. Generate parsers to `./libs/generated` or use VSCode with the ANTLR extension.
 
-
 ## Todo (Tentative)
 
 - [ ] Grammar