Python: Fix query names that inclde __ (dunder)

Without backticks, the text UNDERSCORE UNDERSCORE eq UNDERSCORE UNDERSCORE would
be considered to make things bold in our markdown output, making the query info
look strange.

Example https://codeql.github.com/codeql-query-help/python/py-slots-in-old-style-class/

python/ql/src/Classes/DefineEqualsWhenAddingAttributes.ql

@@ -1,5 +1,5 @@
 /**
- * @name __eq__ not overridden when adding attributes
+ * @name `__eq__` not overridden when adding attributes
  * @description When adding new attributes to instances of a class, equality for that class needs to be defined.
  * @kind problem
  * @tags reliability

python/ql/src/Classes/InitCallsSubclassMethod.ql

@@ -1,6 +1,6 @@
 /**
- * @name __init__ method calls overridden method
- * @description Calling a method from __init__ that is overridden by a subclass may result in a partially
+ * @name `__init__` method calls overridden method
+ * @description Calling a method from `__init__` that is overridden by a subclass may result in a partially
  *              initialized instance being observed.
  * @kind problem
  * @tags reliability

python/ql/src/Classes/MaybeUndefinedClassAttribute.ql

@@ -1,6 +1,6 @@
 /**
  * @name Maybe undefined class attribute
- * @description Accessing an attribute of 'self' that is not initialized in the __init__ method may cause an AttributeError at runtime
+ * @description Accessing an attribute of `self` that is not initialized in the `__init__` method may cause an AttributeError at runtime
  * @kind problem
  * @tags reliability
  *       correctness

python/ql/src/Classes/MissingCallToDel.ql

@@ -1,6 +1,6 @@
 /**
- * @name Missing call to __del__ during object destruction
- * @description An omitted call to a super-class __del__ method may lead to class instances not being cleaned up properly.
+ * @name Missing call to `__del__` during object destruction
+ * @description An omitted call to a super-class `__del__` method may lead to class instances not being cleaned up properly.
  * @kind problem
  * @tags efficiency
  *       correctness

python/ql/src/Classes/MissingCallToInit.ql

@@ -1,6 +1,6 @@
 /**
- * @name Missing call to __init__ during object initialization
- * @description An omitted call to a super-class __init__ method may lead to objects of this class not being fully initialized.
+ * @name Missing call to `__init__` during object initialization
+ * @description An omitted call to a super-class `__init__` method may lead to objects of this class not being fully initialized.
  * @kind problem
  * @tags reliability
  *       correctness

python/ql/src/Classes/MutatingDescriptor.ql

@@ -1,5 +1,5 @@
 /**
- * @name Mutation of descriptor in __get__ or __set__ method.
+ * @name Mutation of descriptor in `__get__` or `__set__` method.
  * @description Descriptor objects can be shared across many instances. Mutating them can cause strange side effects or race conditions.
  * @kind problem
  * @tags reliability

python/ql/src/Classes/OverwritingAttributeInSuperClass.ql

@@ -1,6 +1,6 @@
 /**
  * @name Overwriting attribute in super-class or sub-class
- * @description Assignment to self attribute overwrites attribute previously defined in subclass or superclass __init__ method.
+ * @description Assignment to self attribute overwrites attribute previously defined in subclass or superclass `__init__` method.
  * @kind problem
  * @tags reliability
  *       maintainability

python/ql/src/Classes/SlotsInOldStyleClass.ql

@@ -1,6 +1,6 @@
 /**
- * @name '__slots__' in old-style class
- * @description Overriding the class dictionary by declaring '__slots__' is not supported by old-style
+ * @name `__slots__` in old-style class
+ * @description Overriding the class dictionary by declaring `__slots__` is not supported by old-style
  *              classes.
  * @kind problem
  * @problem.severity error

python/ql/src/Classes/SuperclassDelCalledMultipleTimes.ql

@@ -1,6 +1,6 @@
 /**
- * @name Multiple calls to __del__ during object destruction
- * @description A duplicated call to a super-class __del__ method may lead to class instances not be cleaned up properly.
+ * @name Multiple calls to `__del__` during object destruction
+ * @description A duplicated call to a super-class `__del__` method may lead to class instances not be cleaned up properly.
  * @kind problem
  * @tags efficiency
  *       correctness

python/ql/src/Classes/SuperclassInitCalledMultipleTimes.ql

@@ -1,6 +1,6 @@
 /**
- * @name Multiple calls to __init__ during object initialization
- * @description A duplicated call to a super-class __init__ method may lead to objects of this class not being properly initialized.
+ * @name Multiple calls to `__init__` during object initialization
+ * @description A duplicated call to a super-class `__init__` method may lead to objects of this class not being properly initialized.
  * @kind problem
  * @tags reliability
  *       correctness

python/ql/src/Classes/UndefinedClassAttribute.ql

@@ -1,6 +1,6 @@
 /**
  * @name Undefined class attribute
- * @description Accessing an attribute of 'self' that is not initialized anywhere in the class in the __init__ method may cause an AttributeError at runtime
+ * @description Accessing an attribute of `self` that is not initialized anywhere in the class in the `__init__` method may cause an AttributeError at runtime
  * @kind problem
  * @tags reliability
  *       correctness

python/ql/src/Classes/UselessClass.ql

@@ -1,6 +1,6 @@
 /**
  * @name Useless class
- * @description Class only defines one public method (apart from __init__ or __new__) and should be replaced by a function
+ * @description Class only defines one public method (apart from `__init__` or `__new__`) and should be replaced by a function
  * @kind problem
  * @tags maintainability
  *       useless-code

python/ql/src/Classes/WrongNumberArgumentsInClassInstantiation.ql

@@ -1,6 +1,6 @@
 /**
  * @name Wrong number of arguments in a class instantiation
- * @description Using too many or too few arguments in a call to the __init__
+ * @description Using too many or too few arguments in a call to the `__init__`
  *              method of a class will result in a TypeError at runtime.
  * @kind problem
  * @tags reliability