Fix typos (#1041)

* Update README.md
* Update NEWS.md
* Update CONTRIBUTING.md

Author: pitmonticone

CONTRIBUTING.md

@@ -10,7 +10,7 @@ A pre-requisite for using JuliaImages is to know at least a little about Julia i
 
 ## Learning JuliaImages
 
-Our [main documentaion](https://juliaimages.org/stable/) provides an overview and some examples of using JuliaImages.
+Our [main documentation](https://juliaimages.org/stable/) provides an overview and some examples of using JuliaImages.
 Many of the core packages are hosted at [JuliaImages](https://github.com/JuliaImages), but core components can also be found at [JuliaMath](https://github.com/JuliaMath), [JuliaGraphics](https://github.com/JuliaGraphics), and
 [JuliaArrays](https://github.com/JuliaArrays).
 

NEWS.md

@@ -16,9 +16,9 @@ This release introduces a few major changes that everyone should be aware of:
 
 - drops compatibility to Julia 1.0. Julia at least 1.3 is required.
 - drops compatibility to ImageCore 0.8. ImageCore at least 0.9.3 is required.
-- revisited RGB-related operations to provide non-ambiguious implementation. See also the "abs and
+- revisited RGB-related operations to provide non-ambiguous implementation. See also the "abs and
   abs2" section in the [ColorVectorSpace README][ColorVectorSpace-v09-readme-abs].
-- revisits and moves a lot of legacy codes in `src/algorthms.jl` of Images to sub-packages, e.g.,
+- revisits and moves a lot of legacy codes in `src/algorithms.jl` of Images to sub-packages, e.g.,
   ImageBase, ImageFiltering, and ImageMorphology.
 - for a large number of legacy functions, positional arguments are deprecated in favor of their
   keyword alternatives.

README.md

@@ -33,7 +33,7 @@ All participants are expected to abide by the [Julia Community Standards](https:
 
 ## Compatibility
 
-The codebase and dependency of Images toolbox is delibrately maintained to support all Julia minor
+The codebase and dependency of Images toolbox is deliberately maintained to support all Julia minor
 versions since the latest long-term-support(LTS) Julia version, thus you can expect it to work on
 Julia >= v1.6. Note that this is only true for the latest Images version, and currently we do not
 have Images LTS version. For the best experience, we recommend you to use the latest stable Julia