Units.md

@@ -33,7 +33,7 @@ To compare with experimental data typically one needs to convert results to SI u
 
 Below we provide conversion factors: 
 
-|qunatity| symbol | code value | SI value |
+|quantity| symbol | code value | SI value |
 | ---- | ---- | ----|-----|
 | wave-vector | $`k`$| 1 | $`\frac{1}{l}\,\left[\frac{\textrm{1}}{\textrm{m}}\right]`$ |
 | momentum | $`p=\hbar k`$ | 1 | $`\frac{\hbar}{l}\,\left[\frac{\textrm{kg m}}{\textrm{s}}\right]`$ |