Documentation: Fix the typo in the word Continuous (#8027)

There was a recurring typo in the word `Continuous`.

### Motivation:

To improve the overall quality of the project.

### Modifications:

The typo appeared in a file name and one sentence, both of which have
been corrected.

### Result:

These changes are backward compatible as they pertain to documentation
only, with no impact on the code.

Author: MojtabaHs

Documentation/ContinousIntegration.md renamed to Documentation/ContinuousIntegration.md

@@ -27,7 +27,7 @@
   * [Creating C Language Targets](#creating-c-language-targets)
   * [Using Shell Completion Scripts](#using-shell-completion-scripts)
   * [Package manifest specification](PackageDescription.md)
-  * [Packages and continuous integration](ContinousIntegration.md)
+  * [Packages and continuous integration](ContinuousIntegration.md)
 
 ---