Merge pull request #70488 from Blargian/docs_conversion_functions

[Docs] update `toFixedString` and `toISOWeek`

docs/en/sql-reference/functions/date-time-functions.md

@@ -2010,6 +2010,38 @@ Result:
 
 Converts a date, or date with time, to a UInt8 number containing the ISO Week number.
 
+**Syntax**
+
+```sql
+toISOWeek(value)
+```
+
+**Arguments**
+
+- `value` — The value with date or date with time.
+
+**Returned value**
+
+- `value` converted to the current ISO week number. [UInt8](../data-types/int-uint.md).
+
+**Example**
+
+Query:
+
+```sql
+SELECT
+  toISOWeek(toDate('2024/10/02')) AS week1,
+  toISOWeek(toDateTime('2024/10/02 01:30:00')) AS week2
+```
+
+Response:
+
+```response
+┌─week1─┬─week2─┐
+│    40 │    40 │
+└───────┴───────┘
+```
+
 ## toWeek
 
 This function returns the week number for date or datetime. The two-argument form of `toWeek()` enables you to specify whether the week starts on Sunday or Monday and whether the return value should be in the range from 0 to 53 or from 1 to 53. If the mode argument is omitted, the default mode is 0.

docs/en/sql-reference/functions/type-conversion-functions.md

@@ -5230,15 +5230,52 @@ Result:
 
 Also see the `toUnixTimestamp` function.
 
-## toFixedString(s, N)
+## toFixedString
 
 Converts a [String](../data-types/string.md) type argument to a [FixedString(N)](../data-types/fixedstring.md) type (a string of fixed length N).
 If the string has fewer bytes than N, it is padded with null bytes to the right. If the string has more bytes than N, an exception is thrown.
 
-## toStringCutToZero(s)
+**Syntax**
+
+```sql
+toFixedString(s, N)
+```
+
+**Arguments**
+
+- `s` — A String to convert to a fixed string. [String](../data-types/string.md).
+- `N` — Length N. [UInt8](../data-types/int-uint.md)
+
+**Returned value**
+
+- An N length fixed string of `s`. [FixedString](../data-types/fixedstring.md).
+
+**Example**
+
+Query:
+
+``` sql
+SELECT toFixedString('foo', 8) AS s;
+```
+
+Result:
+
+```response
+┌─s─────────────┬─s_cut─┐
+│ foo\0\0\0\0\0 │ foo   │
+└───────────────┴───────┘
+```
+
+## toStringCutToZero
 
 Accepts a String or FixedString argument. Returns the String with the content truncated at the first zero byte found.
 
+**Syntax**
+
+```sql
+toStringCutToZero(s)
+```
+
 **Example**
 
 Query: