Fix docstring

[JeffFessler]

No description provided.

[codecov]

Codecov Report

Merging #111 (71274b8) into main (e1a3a69) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #111      +/-   ##
==========================================
- Coverage   99.95%   99.95%   -0.01%     
==========================================
  Files          44       45       +1     
  Lines        2264     2210      -54     
==========================================
- Hits         2263     2209      -54     
  Misses          1        1              

Impacted Files	Coverage Δ
src/regularize/Aodwt.jl	100.00% <ø> (ø)
src/algorithm/general/pogm_restart.jl	98.82% <0.00%> (-0.02%)	⬇️
src/io/ir_dump.jl	100.00% <0.00%> (ø)
src/nufft/dtft.jl	100.00% <0.00%> (ø)
src/fbp/rect_im.jl	100.00% <0.00%> (ø)
src/nufft/nufft.jl	100.00% <0.00%> (ø)
src/mri/exp_mult.jl	100.00% <0.00%> (ø)
src/utility/mask.jl	100.00% <0.00%> (ø)
src/fbp/cuboid_im.jl	100.00% <0.00%> (ø)
src/fbp/rect_sino.jl	100.00% <0.00%> (ø)
... and 20 more

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