chore: update readme for First and FirstOrZeroValue functions

README.md

@@ -203,6 +203,8 @@ Supported search helpers:
 - [Max](#max)
 - [MaxBy](#maxby)
 - [Last](#last)
+- [First](#first)
+- [FirstOrZeroValue](#firstorzerovalue)
 - [Nth](#nth)
 - [Sample](#sample)
 - [Samples](#samples)
@@ -1988,6 +1990,25 @@ Returns the last element of a collection or error if empty.
 last, err := lo.Last([]int{1, 2, 3})
 // 3
 ```
+### First
+
+Returns the first element of a collection or error if empty.
+
+```go
+first, err := lo.First([]int{1, 2, 3})
+// 1
+```
+### FirstOrZeroValue
+
+Returns the first element of a collection or zero value if empty.
+
+```go
+first := lo.FirstOrZeroValue([]int{1, 2, 3})
+// 1
+
+first := lo.FirstOrZeroValue([]int{})
+// 0
+```
 
 ### Nth