diff --git a/README.Rmd b/README.Rmd
index 3f6f886..48a6975 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -37,7 +37,7 @@ Install the current version from [GitHub](https://github.com/):
 devtools::install_github("FrancisCrickInstitute/chronogram")
 ```
 
-If you have not installed packages from github before, you will to [setup your GitHub account to interact with R](https://usethis.r-lib.org/articles/git-credentials.html#practical-instructions).
+If you have not installed packages from github before, you will need to [setup your GitHub account to interact with R](https://usethis.r-lib.org/articles/git-credentials.html#practical-instructions).
 
 ------------------------------------------------------------------------
 
@@ -63,7 +63,7 @@ The `chronogram` workflow can be divided into assembly, annotation and finally,
 
 -   `cg_assemble()` combines cleaned metadata, experimental data, and a range of calendar dates into a chronogram.
 
--   `cg_add_experiment()` allows the adding of further experiments
+-   `cg_add_experiment()` allows the adding of further experiments.
 
 Further details:
 
@@ -71,7 +71,7 @@ Further details:
 
 -   [SQL vignette](articles/SQL_assembly.html) explains `chronogram` assembly from an SQL database.
 
--   An introduction to the [chronogram class](articles/chronogram_class.html)
+-   An introduction to the [chronogram class](articles/chronogram_class.html).
 
 ### chronogram annotation
 
diff --git a/README.md b/README.md
index 3e61168..30fcc60 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ Install the current version from [GitHub](https://github.com/):
 devtools::install_github("FrancisCrickInstitute/chronogram")
 ```
 
-If you have not installed packages from github before, you will to
+If you have not installed packages from github before, you will need to
 [setup your GitHub account to interact with
 R](https://usethis.r-lib.org/articles/git-credentials.html#practical-instructions).
 
@@ -67,7 +67,7 @@ analysis.
 - `cg_assemble()` combines cleaned metadata, experimental data, and a
   range of calendar dates into a chronogram.
 
-- `cg_add_experiment()` allows the adding of further experiments
+- `cg_add_experiment()` allows the adding of further experiments.
 
 Further details:
 
@@ -78,7 +78,7 @@ Further details:
   assembly from an SQL database.
 
 - An introduction to the [chronogram
-  class](articles/chronogram_class.html)
+  class](articles/chronogram_class.html).
 
 ### chronogram annotation
 
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