Normalize CLI options and help display

README.md

@@ -74,17 +74,17 @@ tricu eval [OPTIONS]
   Evaluate a file and return the result of the expression in the final line
 
   -f --file=FILE      Optional input file path for evaluation.
-                      Defaults to stdin.
+                        Defaults to stdin.
   -o --output=OUTPUT  Optional output file path for resulting output.
-                      Defaults to stdout.
+                        Defaults to stdout.
   -t --form=FORM      Optional output form: (fsl|tree|ast|ternary|ascii).
-                      Defaults to fsl.
+                        Defaults to fsl.
 
 tricu decode [OPTIONS]
   Decode a Tree Calculus value into a string representation
 
-  -f --input=ITEM     Optional file path to attempt decoding.
-                      Defaults to stdin.
+  -f --file=FILE      Optional input file path to attempt decoding.
+                        Defaults to stdin.
 ```
 
 ## Acknowledgements