Fix issue detected by check-tags.py

functions-and-operators/expressions-pushed-down.md

@@ -14,8 +14,8 @@ TiFlash also supports pushdown for the functions and operators [listed on this p
 | Expression Type | Operations |
 | :-------------- | :------------------------------------- |
 | [Logical operators](/functions-and-operators/operators.md#logical-operators) | AND (&&), OR (||), NOT (!), XOR |
-| [Bit operators](/functions-and-operators/operators.md#operators) | [&][operator_bitwise-and], [~][operator_bitwise-invert], [\|][operator_bitwise-or], [<code>^</code>][operator_bitwise-xor], [<<][operator_left-shift], [>>][operator_right-shift] |
-| [Comparison functions and operators](/functions-and-operators/operators.md#comparison-functions-and-operators) | [<][operator_less-than], [<=][operator_less-than-or-equal], [=][operator_equal], [!= (<\>)][operator_not-equal], [>][operator_greater-than], [>=][operator_greater-than-or-equal], [<=>][operator_equal-to], [BETWEEN ... AND ...][operator_between], [COALESCE()][function_coalesce], [IN()][operator_in], [INTERVAL()][function_interval], [IS NOT NULL][operator_is-not-null], [IS NOT][operator_is-not], [IS NULL][operator_is-null], [IS][operator_is], [ISNULL()][function_isnull], [LIKE][operator_like], [NOT BETWEEN ... AND ...][operator_not-between], [NOT IN()][operator_not-in], [NOT LIKE][operator_not-like], [STRCMP()][function_strcmp] |
+| [Bit operators](/functions-and-operators/operators.md#operators) | [&][operator_bitwise-and], [~][operator_bitwise-invert], [\|][operator_bitwise-or], [<code>^</code>][operator_bitwise-xor], [`<<`][operator_left-shift], [`>>`][operator_right-shift] |
+| [Comparison functions and operators](/functions-and-operators/operators.md#comparison-functions-and-operators) | [`<`][operator_less-than], [`<=`][operator_less-than-or-equal], [`=`][operator_equal], [`!= (<>)`][operator_not-equal], [`>`][operator_greater-than], [`>=`][operator_greater-than-or-equal], [`<=>`][operator_equal-to], [BETWEEN ... AND ...][operator_between], [COALESCE()][function_coalesce], [IN()][operator_in], [INTERVAL()][function_interval], [IS NOT NULL][operator_is-not-null], [IS NOT][operator_is-not], [IS NULL][operator_is-null], [IS][operator_is], [ISNULL()][function_isnull], [LIKE][operator_like], [NOT BETWEEN ... AND ...][operator_not-between], [NOT IN()][operator_not-in], [NOT LIKE][operator_not-like], [STRCMP()][function_strcmp] |
 | [Numeric functions and operators](/functions-and-operators/numeric-functions-and-operators.md) | [+][operator_plus], [-][operator_minus], [*][operator_times], [/][operator_divide], [DIV][operator_div], [% (MOD)][operator_mod], [-][operator_unary-minus], [ABS()][function_abs], [ACOS()][function_acos], [ASIN()][function_asin], [ATAN()][function_atan], [ATAN2(), ATAN()][function_atan2], [CEIL()][function_ceil], [CEILING()][function_ceiling], [CONV()][function_conv], [COS()][function_cos], [COT()][function_cot], [CRC32()][function_crc32], [DEGREES()][function_degrees], [EXP()][function_exp], [FLOOR()][function_floor], [LN()][function_ln], [LOG()][function_log], [LOG10()][function_log10], [LOG2()][function_log2], [MOD()][function_mod], [PI()][function_pi], [POW()][function_pow], [POWER()][function_power], [RADIANS()][function_radians], [RAND()][function_rand], [ROUND()][function_round], [SIGN()][function_sign], [SIN()][function_sin], [SQRT()][function_sqrt] |
 | [Control flow functions](/functions-and-operators/control-flow-functions.md) | [CASE][operator_case], [IF()][function_if], [IFNULL()][function_ifnull] |
 | [JSON functions](/functions-and-operators/json-functions.md) | [JSON_ARRAY([val[, val] ...])][json_array],<br/> [JSON_CONTAINS(target, candidate[, path])][json_contains],<br/> [JSON_EXTRACT(json_doc, path[, path] ...)][json_extract],<br/> [JSON_INSERT(json_doc, path, val[, path, val] ...)][json_insert],<br/> [JSON_LENGTH(json_doc[, path])][json_length],<br/> [JSON_MERGE(json_doc, json_doc[, json_doc] ...)][json_merge],<br/> [JSON_OBJECT([key, val[, key, val] ...])][json_object],<br/> [JSON_REMOVE(json_doc, path[, path] ...)][json_remove],<br/> [JSON_REPLACE(json_doc, path, val[, path, val] ...)][json_replace],<br/> [JSON_SET(json_doc, path, val[, path, val] ...)][json_set],<br/> [JSON_TYPE(json_val)][json_type],<br/> [JSON_UNQUOTE(json_val)][json_unquote],<br/> [JSON_VALID(val)][json_valid] |