fix,doc: spelling errors (#551)

CONTRIBUTING.md

@@ -104,7 +104,7 @@ Please try to keep your individual changes as minimal and focussed on the issue
 If you discover that the scope of your contribution is growing larger than expected you might want to split the changes into multiple separate contributions to allow a more focussed discussion and review.
 
 It is usually a great idea and often required to add tests for your changes.
-This allows us to quickly validate that the changes are working as intended and also guarantees that they wont be broken by other future updates.
+This allows us to quickly validate that the changes are working as intended and also guarantees that they won't be broken by other future updates.
 For small and targeted functional changes, e.g. supporting a new URL schema, a [unit test](#unit-tests) may be enough.
 For contributions that change large-scale behaviour, such as dependency caching features, an [integration test](#integration-tests) is more suited.
 Depending on the changes, a combination of both test types may also be appropriate.

README.md

@@ -409,7 +409,7 @@ CPMAddPackage(
 ### [Boost](https://github.com/boostorg/boost)
 
 Boost is a large project and will take a while to download. Using
-`CPM_SOURCE_CACHE` is strongly recomended. Cloning moves much more
+`CPM_SOURCE_CACHE` is strongly recommended. Cloning moves much more
 data than a source archive, so this sample will use a compressed
 source archive (tar.xz) release from Boost's github page.
 
@@ -538,7 +538,7 @@ The URL for branch `v2.x` of spdlog is:
 
 #### Tag
 
-Tags are simiar, but with this format:
+Tags are similar, but with this format:
 
 `https://github.com/<user>/<name>/archive/refs/tags/<tag-name>.<archive-type>`
 
@@ -561,7 +561,7 @@ Example:
 
 ### Determining the Hash
 
-The following snipet illustrates determining the SHA256 hash on a linux machine using `wget` and `sha256sum`:
+The following snippet illustrates determining the SHA256 hash on a linux machine using `wget` and `sha256sum`:
 ```bash
 wget https://github.com/gabime/spdlog/archive/refs/tags/v1.13.0.zip -O - | sha256sum
 ```

test/integration/test_simple.rb

@@ -70,7 +70,7 @@ class Simple < IntegrationTest
 
       exes = Dir[exe_dir + '/**/*'].filter {
         # on multi-configuration generators (like Visual Studio) the executables will be in bin/<Config>
-        # also filter-out other articacts like .pdb or .dsym
+        # also filter-out other artifacts like .pdb or .dsym
         !File.directory?(_1) && File.stat(_1).executable?
       }.map {
         # remove .exe extension if any (there will be one on Windows)