doc: fix github urls to use the new org

Signed-off-by: Fabio Utzig <fabio.utzig@nordicsemi.no>
diff --git a/docs/SECURITY.md b/docs/SECURITY.md
index ae003a4..aa50858 100644
--- a/docs/SECURITY.md
+++ b/docs/SECURITY.md
@@ -39,7 +39,7 @@
 Vulnerability reports and published fixes will be reported as follows:
 
 - Issues will be entered into Github's [Security Advisory
-  system](https://github.com/JuulLabs-OSS/mcuboot/security/advisories), with
+  system](https://github.com/mcu-tools/mcuboot/security/advisories), with
   the interested parties (including the reporter) added as viewers.
 
 - The release notes will contain a reference to any allocated CVE(s).
diff --git a/docs/SubmittingPatches.md b/docs/SubmittingPatches.md
index 8a6cf7c..55b9230 100644
--- a/docs/SubmittingPatches.md
+++ b/docs/SubmittingPatches.md
@@ -1,7 +1,7 @@
 # Submitting Patches
 
 Development on mcuboot primarily takes place in github, at:
-https://github.com/JuulLabs-OSS/mcuboot
+https://github.com/mcu-tools/mcuboot
 
 Changes should be submitted via github pull requests.  Each commit
 should have a Signed-off-by line for the author (and the committer, if
diff --git a/docs/index.md b/docs/index.md
index 90427f7..299916b 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -41,7 +41,7 @@
 The issues being planned and worked on are tracked using GitHub issues. To participate
 please visit:
 
-[MCUboot Issues](https://github.com/JuulLabs-OSS/mcuboot/issues)
+[MCUboot Issues](https://github.com/mcu-tools/mcuboot/issues)
 
 ~~Issues were previously tracked on [MCUboot JIRA](https://runtimeco.atlassian.net/projects/MCUB/summary)
 , but it is now deprecated.~~
@@ -55,13 +55,13 @@
 
 For more information in the source, here are some pointers:
 
-- [boot/bootutil](https://github.com/JuulLabs-OSS/mcuboot/tree/master/boot/bootutil): The core of the bootloader itself.
-- [boot/boot\_serial](https://github.com/JuulLabs-OSS/mcuboot/tree/master/boot/boot_serial): Support for serial upgrade within the bootloader itself.
-- [boot/zephyr](https://github.com/JuulLabs-OSS/mcuboot/tree/master/boot/zephyr): Port of the bootloader to Zephyr
-- [boot/mynewt](https://github.com/JuulLabs-OSS/mcuboot/tree/master/boot/mynewt): Mynewt bootloader app
-- [boot/mbed](https://github.com/JuulLabs-OSS/mcuboot/tree/master/boot/mbed): Port of the bootloader to Mbed-OS
-- [imgtool](https://github.com/JuulLabs-OSS/mcuboot/tree/master/scripts/imgtool.py): A tool to securely sign firmware images for booting by MCUboot.
-- [sim](https://github.com/JuulLabs-OSS/mcuboot/tree/master/sim): A bootloader simulator for testing and regression
+- [boot/bootutil](https://github.com/mcu-tools/mcuboot/tree/master/boot/bootutil): The core of the bootloader itself.
+- [boot/boot\_serial](https://github.com/mcu-tools/mcuboot/tree/master/boot/boot_serial): Support for serial upgrade within the bootloader itself.
+- [boot/zephyr](https://github.com/mcu-tools/mcuboot/tree/master/boot/zephyr): Port of the bootloader to Zephyr
+- [boot/mynewt](https://github.com/mcu-tools/mcuboot/tree/master/boot/mynewt): Mynewt bootloader app
+- [boot/mbed](https://github.com/mcu-tools/mcuboot/tree/master/boot/mbed): Port of the bootloader to Mbed-OS
+- [imgtool](https://github.com/mcu-tools/mcuboot/tree/master/scripts/imgtool.py): A tool to securely sign firmware images for booting by MCUboot.
+- [sim](https://github.com/mcu-tools/mcuboot/tree/master/sim): A bootloader simulator for testing and regression
 
 ## Joining
 
diff --git a/docs/readme-mbed.md b/docs/readme-mbed.md
index e94b4cb..189c7bf 100644
--- a/docs/readme-mbed.md
+++ b/docs/readme-mbed.md
@@ -16,7 +16,7 @@
 * `"mcuboot.max-img-sectors"`: maximum number of sectors, should be at least the number of sectors in each slot
 * `"target.restrict_size"`: the maximum size of the bootloader, such that it does not overlap with the primary slot
 
-More configurations such as signing algorithm, slot swapping, etc. can be found in [mbed_lib.json](https://github.com/JuulLabs-OSS/mcuboot/tree/master/boot/mbed/mbed_lib.json). Please note that certain features are not currently supported.
+More configurations such as signing algorithm, slot swapping, etc. can be found in [mbed_lib.json](https://github.com/mcu-tools/mcuboot/tree/master/boot/mbed/mbed_lib.json). Please note that certain features are not currently supported.
 
 ### Providing a secondary slot
 
diff --git a/docs/readme-mynewt.md b/docs/readme-mynewt.md
index c2e509d..0ead2a4 100644
--- a/docs/readme-mynewt.md
+++ b/docs/readme-mynewt.md
@@ -14,7 +14,7 @@
     repository.mcuboot:
         type: github
         vers: 0-dev
-        user: JuulLabs-OSS
+        user: mcu-tools
         repo: mcuboot
 ```