Update README.md

README.md

@@ -219,6 +219,7 @@ Or, you can explicitly set an environment variable in your terminal.
 ```
 export OMP_NUM_THREADS=1
 ```
+See [this section](#environment-variables-for-multi-threading) as well.
 
 ## Hamming distance table
 Given two sets of binary vectors, pairwise hamming distances can be computed as follows.
@@ -421,4 +422,4 @@ Moreover, in general:
 - Thread control by function calls takes precedence over thread control by environment variables.
 
 Reference:
-- [Techniques to Set the Number of Threads](https://www.intel.com/content/www/us/en/docs/onemkl/developer-guide-linux/2023-0/techniques-to-set-the-number-of-threads.html)
+- [Techniques to Set the Number of Threads](https://www.intel.com/content/www/us/en/docs/onemkl/developer-guide-linux/2023-0/techniques-to-set-the-number-of-threads.html)