Collections exercises run and hint command does not match standard pattern

[arnoldn1]

rustc version: rustc 1.49.0 (e1884a8e3 2020-12-29)
rustlings version: rustlings 4.3.0

The README gives the run and hint commands as:

rustlings run myExercise1

rustlings hint myExercise1

where myExercise1 is the exercise file name. This remains true for other exercise groups where the file names do not match their parent directory name e.g., conversions.

However, for the collections exercises the pattern is instead:
rustlings run collections1 to run vec1
rustlings run collections2 to run vec2
rustlings run collections3 to run hashmap1
rustlings run collections4 to run hashmap2

There is a comment in each file that specifies the correct hint command but not run command. The lack of consistency leads to some confusion.

[manyinsects]

Yup, I think this has been an inconsistency ever since these exercises came into being, since the folder name is collections. A PR renaming the files themselves to collections1 - collections4 would be appreciated!

[lauralindzey]

@fmoko -- It looks like this Issue could be closed?

[manyinsects]

@lauralindzey Thanks for the nudge!