[clang-tidy][docs] Fix a couple of missed cases from 6e566bc552

A few of the checks had documentation URLs that weren't updated in the aforementioned commit.

clang-tools-extra/clang-tidy/cert/DontModifyStdNamespaceCheck.h

@@ -19,7 +19,7 @@ namespace cert {
 /// This check warns for such modifications.
 ///
 /// For the user-facing documentation see:
-/// https://clang.llvm.org/extra/clang-tidy/checks/cert-dcl58-cpp.html
+/// https://clang.llvm.org/extra/clang-tidy/checks/cert/dcl58-cpp.html
 class DontModifyStdNamespaceCheck : public ClangTidyCheck {
 public:
   DontModifyStdNamespaceCheck(StringRef Name, ClangTidyContext *Context)

clang-tools-extra/clang-tidy/cert/PostfixOperatorCheck.h

@@ -19,7 +19,7 @@ namespace cert {
 /// object.
 ///
 /// For the user-facing documentation see:
-/// https://clang.llvm.org/extra/clang-tidy/checks/cert-dcl21-cpp.html
+/// https://clang.llvm.org/extra/clang-tidy/checks/cert/dcl21-cpp.html
 class PostfixOperatorCheck : public ClangTidyCheck {
 public:
   PostfixOperatorCheck(StringRef Name, ClangTidyContext *Context)

clang-tools-extra/clang-tidy/concurrency/MtUnsafeCheck.h

@@ -18,7 +18,7 @@ namespace concurrency {
 /// Checks that non-thread-safe functions are not used.
 ///
 /// For the user-facing documentation see:
-/// http://clang.llvm.org/extra/clang-tidy/checks/threads-mt-unsafe.html
+/// http://clang.llvm.org/extra/clang-tidy/checks/threads/mt-unsafe.html
 class MtUnsafeCheck : public ClangTidyCheck {
 public:
   MtUnsafeCheck(StringRef Name, ClangTidyContext *Context);

clang-tools-extra/clang-tidy/google/UpgradeGoogletestCaseCheck.h

@@ -19,7 +19,7 @@ namespace google {
 /// replaces them with equivalent names containing "suite".
 ///
 /// For the user-facing documentation see:
-/// https://clang.llvm.org/extra/clang-tidy/checks/google-upgrade-googletest-case.html
+/// https://clang.llvm.org/extra/clang-tidy/checks/google/upgrade-googletest-case.html
 class UpgradeGoogletestCaseCheck : public ClangTidyCheck {
 public:
   UpgradeGoogletestCaseCheck(StringRef Name, ClangTidyContext *Context)

clang-tools-extra/clang-tidy/google/UsingNamespaceDirectiveCheck.h

@@ -33,7 +33,7 @@ namespace build {
 /// Corresponding cpplint.py check name: `build/namespaces`.
 ///
 /// For the user-facing documentation see:
-/// https://clang.llvm.org/extra/clang-tidy/checks/google-build-using-namespace.html
+/// https://clang.llvm.org/extra/clang-tidy/checks/google/build-using-namespace.html
 class UsingNamespaceDirectiveCheck : public ClangTidyCheck {
 public:
   UsingNamespaceDirectiveCheck(StringRef Name, ClangTidyContext *Context)

clang-tools-extra/clang-tidy/hicpp/ExceptionBaseclassCheck.h

@@ -18,7 +18,7 @@ namespace hicpp {
 /// Check for thrown exceptions and enforce they are all derived from std::exception.
 ///
 /// For the user-facing documentation see:
-/// http://clang.llvm.org/extra/clang-tidy/checks/hicpp-exception-baseclass.html
+/// http://clang.llvm.org/extra/clang-tidy/checks/hicpp/exception-baseclass.html
 class ExceptionBaseclassCheck : public ClangTidyCheck {
 public:
   ExceptionBaseclassCheck(StringRef Name, ClangTidyContext *Context)

clang-tools-extra/clang-tidy/hicpp/MultiwayPathsCoveredCheck.h

@@ -20,7 +20,7 @@ namespace hicpp {
 /// without a final 'else'-branch.
 ///
 /// For the user-facing documentation see:
-/// http://clang.llvm.org/extra/clang-tidy/checks/hicpp-multiway-paths-covered.html
+/// http://clang.llvm.org/extra/clang-tidy/checks/hicpp/multiway-paths-covered.html
 class MultiwayPathsCoveredCheck : public ClangTidyCheck {
 public:
   MultiwayPathsCoveredCheck(StringRef Name, ClangTidyContext *Context)

clang-tools-extra/clang-tidy/hicpp/NoAssemblerCheck.h

@@ -18,7 +18,7 @@ namespace hicpp {
 /// Find assembler statements. No fix is offered.
 ///
 /// For the user-facing documentation see:
-/// http://clang.llvm.org/extra/clang-tidy/checks/hicpp-no-assembler.html
+/// http://clang.llvm.org/extra/clang-tidy/checks/hicpp/no-assembler.html
 class NoAssemblerCheck : public ClangTidyCheck {
 public:
   NoAssemblerCheck(StringRef Name, ClangTidyContext *Context)

clang-tools-extra/clang-tidy/hicpp/SignedBitwiseCheck.h

@@ -19,7 +19,7 @@ namespace hicpp {
 /// bitwise operations on signed integer types.
 ///
 /// For the user-facing documentation see:
-/// http://clang.llvm.org/extra/clang-tidy/checks/hicpp-signed-bitwise.html
+/// http://clang.llvm.org/extra/clang-tidy/checks/hicpp/signed-bitwise.html
 class SignedBitwiseCheck : public ClangTidyCheck {
 public:
   SignedBitwiseCheck(StringRef Name, ClangTidyContext *Context);

clang-tools-extra/clang-tidy/readability/FunctionCognitiveComplexityCheck.cpp

@@ -43,7 +43,7 @@ struct CognitiveComplexity final {
   // For details you can look at the Specification at
   // https://www.sonarsource.com/docs/CognitiveComplexity.pdf
   // or user-facing docs at
-  // http://clang.llvm.org/extra/clang-tidy/checks/readability-function-cognitive-complexity.html
+  // http://clang.llvm.org/extra/clang-tidy/checks/readability/function-cognitive-complexity.html
   // Here are all the possible reasons:
   enum Criteria : uint8_t {
     None = 0U,