diff --git a/courses/main.adoc b/courses/main.adoc
index e06aeb3..ebb4dd1 100644
--- a/courses/main.adoc
+++ b/courses/main.adoc
@@ -77,7 +77,7 @@ For questions and commucation between participants (*at any time* not only for t
Ofcourse you can also use the Twitch chat during the live!!!
Please know that during the stream the *only* email that will be monitored and answered is courses@swarmlab.io +
-(but please prefer community chat on gitter! its both easier and you can also talk to eachother)
+(but please prefer community chat on gitter! its both easier and you can also talk to each other)
* You can also see detailed information about the sessions etc in the *callendar* (main page of the swarmlab client) after installation (see section "What tools will I need")
diff --git a/courses/main.adoc.html b/courses/main.adoc.html
index db856a1..d83603a 100644
--- a/courses/main.adoc.html
+++ b/courses/main.adoc.html
@@ -622,7 +622,7 @@ body.book #toc,body.book #preamble,body.book h1.sect0,body.book .sect1>h2{page-b
Please know that during the stream the only email that will be monitored and answered is courses@swarmlab.io
-(but please prefer community chat on gitter! its both easier and you can also talk to eachother)
+(but please prefer community chat on gitter! its both easier and you can also talk to each other)
diff --git a/courses/main.adoc.pdf b/courses/main.adoc.pdf
index 9901384..ea3f10c 100644
--- a/courses/main.adoc.pdf
+++ b/courses/main.adoc.pdf
@@ -6,8 +6,8 @@
/Keywords (Dockerfile)
/Creator (Asciidoctor PDF 1.5.0.beta.5, based on Prawn 2.2.2)
/Producer (Apostolos rootApostolos@swarmlab.io)
-/ModDate (D:20210312212055+00'00')
-/CreationDate (D:20210312213157+00'00')
+/ModDate (D:20210312220900+00'00')
+/CreationDate (D:20210312220913+00'00')
>>
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