Everywhere: Fix more typos

Author: https://github.com/linusg
Commit: bcfc6f0c57
Pull-request: https://github.com/SerenityOS/serenity/pull/3668
Reviewed-by: https://github.com/bugaevc
Reviewed-by: https://github.com/xTibor

Base/usr/share/man/man2/mount.md

@@ -45,7 +45,7 @@ mounted file system.
 
 If `MS_BIND` is specified in `flags`, `fs_type` is ignored and a bind mount is
 performed instead. In this case, the file or directory specified by `source_fd`
-is overlayed over `target` — the target appears to be replaced by a copy of the
+is overlaid over `target` — the target appears to be replaced by a copy of the
 source. This can be used as an alternative to symlinks or hardlinks.
 
 Each bind mount has its own set of flags, independent of the others or the

Base/usr/share/man/man2/pipe.md

@@ -29,7 +29,7 @@ writes some data to the pipe which the parent reads:
 ```c++
 #include <AK/Assertions.h>
 #include <stdio.h>
-#incldue <unistd.h>
+#include <unistd.h>
 
 int main()
 {