diff --git a/README.md b/README.md
index d010dd8..4176496 100644
--- a/README.md
+++ b/README.md
@@ -23,14 +23,14 @@ Jektex supports both the built-in Kramdown math notation, and the newer LaTeX-on
 
 ### Kramdown notation
 **Inline formula**  
-Put formula between two pairs of dolar signs (`$$`) inside of paragraph.
+Put formula between two pairs of dollar signs (`$$`) inside of paragraph.
 ```latex
 Lorem ipsum dolor sit amet, consectetur $$e^{i\theta}=\cos(\theta)+i\sin(\theta)$$
 adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
 ```
 
 **Display formula**  
-Put formula between two pairs of dolar sings (`$$`) and surround it with two empty lines.
+Put formula between two pairs of dollar signs (`$$`) and surround it with two empty lines.
 ```latex
 Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
 incididunt ut labore et dolore magna aliqua.
diff --git a/lib/jektex/jektex.rb b/lib/jektex/jektex.rb
index 3ba6d88..b306323 100644
--- a/lib/jektex/jektex.rb
+++ b/lib/jektex/jektex.rb
@@ -85,7 +85,7 @@ def escape_method(type, expression, doc_path)
 
   # use it if it exists
   if($cache.has_key?(expression_hash) && !contains_updated_global_macro?(expression))
-    # check if expressin conains updated macro
+    # check if expression contains updated macro
     $count_newly_generated_expressions += 1
     print_stats unless $silent
     return $cache[expression_hash]
@@ -166,7 +166,7 @@ def escape_method(type, expression, doc_path)
     end
   end
 
-  # check is silent mode is activated
+  # check if silent mode is activated
   $silent = config["silent"] if config.has_key?("silent")
   # make list of updated macros
   $updated_global_macros = get_list_of_updated_global_macros($global_macros, $cache["cached_global_macros"])
@@ -197,7 +197,7 @@ def escape_method(type, expression, doc_path)
 end
 
 Jekyll::Hooks.register :site, :post_write do
-  # print stats once more to prevent them from being overwriten by error log
+  # print stats once more to prevent them from being overwritten by error log
   print_stats unless $silent
   # print new line to prevent overwriting previous output
   print "\n" unless $silent