Update paragraph on changing format in array editor for Spyder 6

[jitseniesen]

Issue Report

Issue Description

Now that spyder-ide/spyder#20473 is merged, the documentation of the variable explorer needs to be updated to reflect this.

Where is the relevant portion of the documentation located?

https://docs.spyder-ide.org/current/panes/variableexplorer.html#numpy-arrays end of paragraph 2.

What would you suggest it be replaced with?

We can just replace "printf-style syntax" with "format specification" (or whatever the correct term is) and change the link.

Other information

• Is the problem specific to documentation for a particular version of Spyder?

  • N/A
  • Spyder 5 (master)
  • Spyder 4 (4.x)
  • Spyder 3 (3.x, frozen)
  • Spyder 6 (I added this option!)

• Are you planning on submitting a Github pull request with a suitable change?

  • Yes (assuming a suitable branch is created or I'm told otherwise)
  • No
  • Maybe so

• NB 1: There does not seem to be a branch for Spyder 6 documentation.

• NB 2: I believe it is best to update the documentation simultaneous with the code now that we have a decent amount of documentation to build on. Perhaps something to be discussed.

[CAM-Gerlach]

Thanks for the detailed report, @jitseniesen . Since we're close to the more or less final planned non-maintenance mode changes to the 5.x branch and move toward targeting all non-critical work toward the 6.x branch, I was planning on just waiting until that point to formally branch 5.x, since maintaining another branch makes merging more complicated and every build take longer. However, this issue serves to document the change, and you could open a PR against master which could then be merged once 5.x is branched.