Apply suggestions from code review

Co-authored-by: Dave Abrahams <[email protected]>

README.md

@@ -21,7 +21,7 @@ go build
 
 This will build the binary named `lmt` for your platform in the current
 directory. You can use the `-o $path` argument to `go build` to build
-the binary in a different location. (ie `go build -o ~/bin/` to put the
+the binary in a different location. (i.e. `go build -o ~/bin/` to put the
 binary in `~/bin/`.)
 
 ## Demo
@@ -112,7 +112,7 @@ again)
 std::cout << "Hello, world!" << std::endl;
 ```
 
-`lmt` parse each file passed on the command line in order. The last
+`lmt` parses each file passed on the command line in order. The last
 definition of a macro will be used for all references to that macro in
 other code blocks (including blocks which preceeded it in the source.)