clang-tidy doc: add a note for checkers with an autofix

Summary:
Currently, when looking at a checker documentation, we have to go back
to the whole list or look at the sources to figure out if an autofix
is available or not.

Reviewers: alexfh, aaron.ballman

Subscribers: wuzish, Eugene.Zelenko, nemanjai, kbarton, arphaman, Charusso, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77983

clang-tools-extra/docs/clang-tidy/checks/misc-unused-parameters.rst

@@ -40,3 +40,8 @@ Options
    constructors - no constructor initializers). When the function body is empty,
    an unused parameter is unlikely to be unnoticed by a human reader, and
    there's basically no place for a bug to hide.
+
+Automatic Fixes
+^^^^^^^^^^^^^^^
+
+The check provides suggested fixes. See the documentation above for the details.

clang-tools-extra/docs/clang-tidy/checks/modernize-avoid-bind.rst

@@ -86,3 +86,8 @@ that accepts 2 arguments. With permissive parameter list, it instead generates
 which is correct.
   
 This check requires using C++14 or higher to run.
+
+Automatic Fixes
+^^^^^^^^^^^^^^^
+
+The check provides suggested fixes. See the documentation above for the details.

clang-tools-extra/docs/clang-tidy/checks/modernize-deprecated-ios-base-aliases.rst

@@ -15,3 +15,8 @@ Deprecated member type               Replacement
 ``std::ios_base::streamoff``          
 ``std::ios_base::streampos``         
 ===================================  ===========================
+
+Automatic Fixes
+^^^^^^^^^^^^^^^
+
+The check provides suggested fixes. See the documentation above for the details.

clang-tools-extra/docs/clang-tidy/checks/modernize-loop-convert.rst

@@ -265,3 +265,8 @@ exclude incorrect diagnostics on OpenMP for loops prior to OpenMP 5.
 To prevent this check to be applied (and to break) OpenMP for loops but still be
 applied to non-OpenMP for loops the usage of ``NOLINT`` (see
 :ref:`clang-tidy-nolint`) on the specific for loops is recommended.
+
+Automatic Fixes
+^^^^^^^^^^^^^^^
+
+The check provides suggested fixes. See the documentation above for the details.

clang-tools-extra/docs/clang-tidy/checks/modernize-make-shared.rst

@@ -48,3 +48,8 @@ Options
 
    If set to non-zero, the check will not give warnings inside macros. Default
    is `1`.
+
+Automatic Fixes
+^^^^^^^^^^^^^^^
+
+The check provides suggested fixes. See the documentation above for the details.

clang-tools-extra/docs/clang-tidy/checks/modernize-use-bool-literals.rst

@@ -26,3 +26,8 @@ Options
 
    If set to non-zero, the check will not give warnings inside macros. Default
    is `1`.
+
+Automatic Fixes
+^^^^^^^^^^^^^^^
+
+The check provides suggested fixes. See the documentation above for the details.