diff --git a/docs.html b/docs.html
index f2bd909b..5338f90e 100644
--- a/docs.html
+++ b/docs.html
@@ -3116,7 +3116,7 @@ See also:
 <li><a href="#element_access">element access</a></li>
 <li><a href="https://en.wikipedia.org/wiki/Function_object">function object</a> at Wikipedia</li>
 <li><a href="https://en.wikipedia.org/wiki/C%2B%2B11#Lambda_functions_and_expressions">C++11 lambda functions</a> at Wikipedia</li>
-<li><a href="http://www.cprogramming.com/c++11/c++11-lambda-closures.html">lambda function</a> at cprogramming.com</li>
+<li><a href="https://www.cprogramming.com/c++11/c++11-lambda-closures.html">lambda function</a> at cprogramming.com</li>
 </ul>
 </li>
 <br>
@@ -3320,7 +3320,7 @@ See also:
 <li><a href="#misc_fns">miscellaneous element-wise functions</a> &nbsp; (exp, log, sqrt, square, round, ...)</li>
 <li><a href="https://en.wikipedia.org/wiki/Function_object">function object</a> at Wikipedia</li>
 <li><a href="https://en.wikipedia.org/wiki/C%2B%2B11#Lambda_functions_and_expressions">C++11 lambda functions</a> at Wikipedia</li>
-<li><a href="http://www.cprogramming.com/c++11/c++11-lambda-closures.html">lambda function</a> at cprogramming.com</li>
+<li><a href="https://www.cprogramming.com/c++11/c++11-lambda-closures.html">lambda function</a> at cprogramming.com</li>
 </ul>
 </li>
 <br>
@@ -3391,7 +3391,7 @@ See also:
 <li><a href="#misc_fns">miscellaneous element-wise functions</a> &nbsp; (exp, log, sqrt, square, round, ...)</li>
 <li><a href="https://en.wikipedia.org/wiki/Function_object">function object</a> at Wikipedia</li>
 <li><a href="https://en.wikipedia.org/wiki/C%2B%2B11#Lambda_functions_and_expressions">C++11 lambda functions</a> at Wikipedia</li>
-<li><a href="http://www.cprogramming.com/c++11/c++11-lambda-closures.html">lambda function</a> at cprogramming.com</li>
+<li><a href="https://www.cprogramming.com/c++11/c++11-lambda-closures.html">lambda function</a> at cprogramming.com</li>
 </ul>
 </li>
 <br>
@@ -4392,7 +4392,7 @@ See also:
 <li><a href="#pow">pow()</a></li>
 <li><a href="#for_each">.for_each()</a></li>
 <li><a href="#each_colrow">.each_col() &amp; .each_row()</a> &nbsp;</li>
-<li><a href="http://www.cprogramming.com/c++11/c++11-lambda-closures.html">lambda function</a> at cprogramming.com</li>
+<li><a href="https://www.cprogramming.com/c++11/c++11-lambda-closures.html">lambda function</a> at cprogramming.com</li>
 </ul>
 </li>
 <br>
@@ -4638,7 +4638,6 @@ See also:
 <li><a href="#resize_member">.resize()</a></li>
 <li><a href="#submat">submatrix views</a></li>
 <li><a href="#subcube">subcube views</a></li>
-<li><a href="http://thesaurus.com/browse/shed"><i>shed</i> in thesaurus.com</a></li>
 </ul>
 </li>
 <br>
@@ -15264,8 +15263,8 @@ The algorithm for calculating the quantiles is based on <i>Definition 5</i> in:
 <br>
 Rob J. Hyndman and Yanan Fan.
 Sample Quantiles in Statistical Packages.
-The American Statistician, Vol. 50, No. 4, pp. 361-365, 1996.
-<a href="http://doi.org/10.2307/2684934">http://doi.org/10.2307/2684934</a>
+The American Statistician, 50(4), 361-365, 1996.
+DOI: <a href="https://doi.org/10.2307/2684934">10.2307/2684934</a>
 </li>
 <br>
 <li>
@@ -17500,9 +17499,9 @@ use <a href="https://en.cppreference.com/w/cpp/numeric/math/isfinite">std::isfin
 <br>
 <li>
 The physical constants were mainly taken from
-<a href="http://physics.nist.gov/cuu/Constants">NIST 2018 CODATA values</a>,
+<a href="https://physics.nist.gov/cuu/Constants">NIST 2018 CODATA values</a>,
 and some from
-<a href="http://www.wolframalpha.com">WolframAlpha</a> (as of 2009-06-23)
+<a href="https://www.wolframalpha.com">WolframAlpha</a> (as of 2009-06-23)
 </li>
 <br>
 <li>
@@ -20434,7 +20433,7 @@ eg. <i>mat&nbsp;X(4,&nbsp;5,&nbsp;fill::zeros)</i></li>
 <li>added <a href="#transform">.transform()</a> for transforming a matrix/cube using a functor or lambda expression</li>
 <li>added <a href="#misc_fns">round()</a> for rounding matrix elements towards nearest integer</li>
 <li>faster <a href="#find">find()</a></li>
-<li>changed license to the <a href="http://www.mozilla.org/MPL/2.0/">Mozilla Public License 2.0</a></li>
+<li>changed license to the <a href="https://www.mozilla.org/MPL/2.0/">Mozilla Public License 2.0</a></li>
 </ul>
 <br>
 </li>