Email: Proton grammar, free accounts 1GB (#2512)

Signed-off-by: Daniel Gray <[email protected]>

docs/email.md

@@ -46,7 +46,7 @@ OpenPGP also does not support Forward secrecy, which means if either your or the
 
 ![Proton Mail logo](assets/img/email/protonmail.svg){ align=right }
 
-**Proton Mail** is an email service with a focus on privacy, encryption, security, and ease of use. They have been in operation since **2013**. Proton AG is based in Genève, Switzerland. Accounts start with 500 MB storage with their free plan.
+**Proton Mail** is an email service with a focus on privacy, encryption, security, and ease of use. They have been in operation since **2013**. Proton AG is based in Genève, Switzerland. Accounts start with up to 1GB storage with the free plan.
 
 [:octicons-home-16: Homepage](https://proton.me/mail){ .md-button .md-button--primary }
 [:simple-torbrowser:](https://protonmailrmez3lotccipshtkleegetolb73fuirgj7r4o4vfu7ozyd.onion){ .card-link title="Onion Service" }
@@ -73,7 +73,7 @@ Free accounts have some limitations, such as not being able to search body text
 
 If you have the Proton Unlimited, Business, Family, or Visionary Plan, you also get [SimpleLogin](email-aliasing.md#simplelogin) Premium for free.
 
-Proton Mail has internal crash reports that they **do not** share with third parties. This can be disabled in: **Settings** > **Go to Settings** > **Account** > **Security and privacy** > **Send crash reports**.
+Proton Mail has internal crash reports that are **not** shared with third parties. This can be disabled in: **Settings** > **Go to Settings** > **Account** > **Security and privacy** > **Send crash reports**.
 
 #### :material-check:{ .pg-green } Custom Domains and Aliases
 
@@ -115,7 +115,7 @@ Proton Mail doesn't offer a digital legacy feature.
 
 ![Mailbox.org logo](assets/img/email/mailboxorg.svg){ align=right }
 
-**Mailbox.org** is an email service with a focus on being secure, ad-free, and privately powered by 100% eco-friendly energy. They have been in operation since 2014. Mailbox.org is based in Berlin, Germany. Accounts start with 2 GB of storage, which can be upgraded as needed.
+**Mailbox.org** is an email service with a focus on being secure, ad-free, and privately powered by 100% eco-friendly energy. They have been in operation since 2014. Mailbox.org is based in Berlin, Germany. Accounts start with up to 2GB storage, which can be upgraded as needed.
 
 [:octicons-home-16: Homepage](https://mailbox.org){ .md-button .md-button--primary }
 [:octicons-eye-16:](https://mailbox.org/en/data-protection-privacy-policy){ .card-link title="Privacy Policy" }
@@ -182,7 +182,7 @@ These providers store your emails with zero-knowledge encryption, making them gr
 
 ![Tuta logo](assets/img/email/tuta.svg){ align=right }
 
-**Tuta** is an email service with a focus on security and privacy through the use of encryption. Tuta has been in operation since **2011** and is based in Hanover, Germany. Accounts start with 1GB storage with their free plan.
+**Tuta** is an email service with a focus on security and privacy through the use of encryption. Tuta has been in operation since **2011** and is based in Hanover, Germany. Accounts start with up to 1GB storage with the free plan.
 
 [:octicons-home-16: Homepage](https://tuta.com){ .md-button .md-button--primary }
 [:octicons-eye-16:](https://tuta.com/privacy){ .card-link title="Privacy Policy" }