diff --git a/.github/.keepalive b/.github/.keepalive
deleted file mode 100644
index 87e98f4..0000000
--- a/.github/.keepalive
+++ /dev/null
@@ -1 +0,0 @@
-2023-07-01T04:51:55.072Z
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 0c2727b..2ce52c4 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -9,22 +9,22 @@ Bruno Fenzl <brunofenzl@gmail.com>
 Christopher Dambamuromo <chridam@gmail.com>
 Dominik Moritz <domoritz@gmail.com>
 Frank Kovacs <fran70kk@gmail.com>
-Harshita Kalani <95532771+HarshitaKalani@users.noreply.github.com>
-James <jdgelok@gmail.com>
+Harshita Kalani <harshitakalani02@gmail.com>
+James Gelok <jdgelok@gmail.com>
 Jithin KS <jithinks112@gmail.com>
 Joey Reed <joeyrreed@gmail.com>
-Jordan-Gallivan <115050475+Jordan-Gallivan@users.noreply.github.com>
+Jordan Gallivan <115050475+Jordan-Gallivan@users.noreply.github.com>
 Joris Labie <joris.labie1@gmail.com>
 Justin Dennison <justin1dennison@gmail.com>
-KATTA NAGA NITHIN <88046362+nithinkatta@users.noreply.github.com>
-Marcus <mfantham@users.noreply.github.com>
+Nithin Katta <88046362+nithinkatta@users.noreply.github.com>
+Marcus Fantham <mfantham@users.noreply.github.com>
 Matt Cochrane <matthew.cochrane.eng@gmail.com>
 Milan Raj <rajsite@users.noreply.github.com>
 Momtchil Momtchev <momtchil@momtchev.com>
-Naresh Jagadeesan <37257700+Infinage@users.noreply.github.com>
+Naresh Jagadeesan <naresh.naresh000@gmail.com>
 Ognjen Jevremović <ognjenjevremovic@users.noreply.github.com>
 Philipp Burckhardt <pburckhardt@outlook.com>
-Pranav <85227306+Pranavchiku@users.noreply.github.com>
+Pranav Goswami <goswami.4@iitj.ac.in>
 Ricky Reusser <rsreusser@gmail.com>
 Roman Stetsyk <25715951+romanstetsyk@users.noreply.github.com>
 Ryan Seal <splrk@users.noreply.github.com>
@@ -32,7 +32,7 @@ Seyyed Parsa Neshaei <spneshaei@users.noreply.github.com>
 Shraddheya Shendre <shendreshraddheya@gmail.com>
 Stephannie Jiménez Gacha <steff456@hotmail.com>
 Yernar Yergaziyev <yernar.yergaziyev@erg.kz>
-dorrin-sot <59933477+dorrin-sot@users.noreply.github.com>
-drunken_devv <90555965+amitjimiwal@users.noreply.github.com>
+Dorrin Sotoudeh <dorrinsotoudeh123@gmail.com>
+Amit Jimiwal <amitjimiwal45@gmail.com>
 orimiles5 <97595296+orimiles5@users.noreply.github.com>
-rei2hu <rei2hu@users.noreply.github.com>
+rei2hu <reimu@reimu.ws>
diff --git a/README.md b/README.md
index d085c47..8c5edde 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ The [inverse versed cosine][inverse-versed-cosine] is defined as
 <!-- <equation class="equation" label="eq:arcvercosine" align="center" raw="\operatorname{avercos}(\theta) = \arccos(1+\theta)" alt="Inverse versed cosine."> -->
 
 ```math
-\operatorname{avercos}(\theta) = \arccos(1+\theta)
+\mathop{\mathrm{avercos}}(\theta) = \arccos(1+\theta)
 ```
 
 <!-- <div class="equation" align="center" data-raw-text="\operatorname{avercos}(\theta) = \arccos(1+\theta)" data-equation="eq:arcvercosine">