Add example to TranslationTable::to_fn

src/trans_table.rs

@@ -146,6 +146,19 @@ impl TranslationTable {
     ///
     /// Currently, amino acids are represented as [`u8`]s containing the ascii
     /// code for the corresponding letter abbreviation.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use quickdna::{Nucleotide, NucleotideIter, TranslationTable};
+    ///
+    /// use Nucleotide::*;
+    /// let dna = [A, T, C, G, A, T, C, G];
+    ///
+    /// let ncbi1 = TranslationTable::Ncbi1.to_fn();
+    /// let aas = dna.iter().codons().map(ncbi1);
+    /// assert!(aas.eq([b'I', b'D']));
+    /// ```
     pub fn to_fn<C: Into<CodonIdx>>(self) -> impl Copy + Fn(C) -> u8 {
         let start = self.table_index() * Self::CODONS_PER_TABLE;
         let end = start + Self::CODONS_PER_TABLE;